Answers
The table which represents a linear function is:
Last table.
x y
1 -5
2 0
3 5
4 10
Step-by-step explanation:We know that a function is linear if the rate of change is constant.
i.e. the ratio of difference in y value to the corresponding difference in x value is constant.
i.e. for two values (x,y) and (x',y') the rate of change is given by:
[tex]\text{Rate\ of\ change}=\dfrac{y-y'}{x-x'}[/tex]
In each of the tables we observe that the difference in x-value is constant i.e. 1.
since, 2-1=1
3-2=1
and 4-3=1
Now, the function will be linear for which the difference in the y-value is constant.
a)
x y
1 5
2 9
3 5
4 9
The difference in the y-value is as follows:
9-5=4
5-9= -4
9-5= 4
Since, the difference is not constant.
Hence, the function is not linear.
b)
x y
1 -5
2 10
3 -15
4 20
The difference in the y-value is as follows:
10-(-5)=15
-15-10= -25
20-(-15)=35
Hence, the function is not linear ; since the difference in the y-value is not constant.
c)
x y
1 5
2 10
3 20
4 40
The difference in the y-value is as follows:
10-5=5
20-10=10
40-20=20
Since, the difference in the y-value is not constant.
Hence, the function is not linear.
d)
x y
1 -5
2 0
3 5
4 10
The difference in the y-value is as follows:
0-(-5)=5
5-0=5
10-5=5
Since, the difference in the y-value is constant.
Hence, the function is linear.
Related Questions
20 POINTS WILL GIVE BRAINLIEST HELP QUICKLY!!
The table shows the cost of a charm bracelet containing a different number of Charms .the table represents a linear function.
Charms: 0 1 2 3
Cost: 25 40 55 70
What does the Initial value mean for this function?
A. The cost of a bracelet without any charm is $25
B. A bracelet with 4 charms cost $100
C.each charm cost $15
D. Each charm costs $40
Answers
Answer:
A. The cost of a bracelet without any charm is $25
Step-by-step explanation:
The initial value, or the value when x=0 is the cost of the bracelet when the number of charms is 0.
Answer:
The answer is A
Step-by-step explanation:
for one I took the test
two because as the addition of a charm grows so does the price (by 15$) But the *initial* value of a bracelet with no charms is 25$.
273 × 346 in standard algorithm
Answers
Final answer:
To multiply 273 by 346 using the standard algorithm, follow these steps and the result is 94,608.
Explanation:
To multiply 273 by 346 using the standard algorithm, follow these steps:
Multiply the units' digits: 3 * 6 = 18. Write down the 8 and carry over the 1.
Multiply the tens' digits: 7 * 4 = 28. Add the carried-over 1: 28 + 1 = 29. Write down the 9 and carry over the 2.
Multiply the hundreds' digits: 2 * 3 = 6. Add the carried-over 2: 6 + 2 = 8.
Write down the result in the correct place value: 8 (hundreds), 9 (tens), 8 (units).
So, 273 multiplied by 346 gives us 94,608.
There are 20% more goblins thank wizards in the magic club. There are 120 goblins in magic club. How many wizards are in magic club?
Answers
Answer:
There are 10 wizards in the magic club.
Step-by-step explanation:
if 6/5 (or 20% more) is how many goblins in comparison to wizards, there are 120/6 or 20=1/5. 5/5 is how many wizards there are so: 5*20=100 wizards
Negative six to the second power times negative six to the fifth power
Answers
Answer:
Step-by-step explanation:
The awnser is -279936
Answer:
6^7 = 279936
Step-by-step explanation:
(-6) ^ 2 * (6) ^5
We can take the negative outside
(-1) ^2 (6)^2 (6)^5
When the base is the same, we can add the exponents
(-1)^2 * 6^ (2+5)
(-1)^2 6^7
Negative 1 squared is (-1)*(-1) = 1
6^7
279936
Is (0,0) a solution to this system?
y ≤ x^2 - 4
y > 2x - 1
A. No. (0,0) satisfies y ≤ x^2- 4 but does not satisfy y > 2x - 1.
B. No. (0,0) satisfies y > 2x - 1 but does not satisfy y ≤ x^2 - 4.
C. Yes. (0,0) satisfies both inequalities.
D. No. (0,0) does not satisfy either inequality.
Answers
Answer:
option-B
Step-by-step explanation:
we are given system of inequality as
[tex]y\leq x^2-4[/tex]
[tex]y>2x-1[/tex]
now, we can check solution
At (0,0):
we can plug x=0 and y=0
and check inequality
[tex]0\leq 0^2-4[/tex]
[tex]0\leq -4[/tex]
so, this is FALSE
now, we can check second inequality
[tex]0>2\times 0-1[/tex]
[tex]0>-1[/tex]
So, this is TRUE
so, option-B
Answer: Hello mate!
we want to know if the pair (0,0) is a solution for the system, where the usual notation for a pair is (x,y), and the system is:
y ≤ x^2 - 4
y > 2x - 1
The first step is replacing the numbers in the system by the numbers in the pair, and look if the pair is a solution or not.
the first inequality gets:
y ≤ x^2 - 4
0 ≤ 0^2 - 4
0 ≤ - 4
This is false, so (0,0) is not a solution for this inequality.
Now let's see the second one:
y > 2x - 1
0 > 2*0 - 1
0 > -1
This is true, then the pair (0,0) is a solution for this inequality.
then the answer is the option B, the pair (0,0) is not a solution for the system, satisfies y > 2x - 1 but does not satisfy y ≤ x^2 - 4.
how many solutions does this system have? y = 5x - 1 y = -3x + 7
Answers
Answer:
There are no solutions.
Step-by-step explanation:
Nothing can be done further.
The given system of equations has exactly one solution for x =1 that is y = 4.
What is the system of linear equation ?
A system of linear equation is a group of one or more linear equations which can be solved by using a simultaneous equation.
The system of equations given is :
y = 5x - 1 ---- -- ---- ---- ---- ---- ---- ---- ---- ---- Equation 1
y = -3x + 7 ---- -- ---- ---- ---- ---- ---- ---- ---- ---- Equation 2
Solving the system of equation by subtracting equation 2 from equation 1.
y - y = (5x + 3x) + (-1 - 7)
0 = 8x - 8
x = 1
So , for x = 1 , we have values of y as :
y = 4
and
y = 4
So, the system of equation has one value for x = 1 that is y = 4.
Therefore , the given system of equations has exactly one solution for x =1 that is y = 4.
Learn more about system of equations here :
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How do I use elimination for the equations-x+5y=20 and 12y= 2x+ 60?
Answers
[tex]\left\{\begin{array}{ccc}-x+5y=20\\12y=2x+60&\text{subtract 2x from both sides}\end{array}\right\\\left\{\begin{array}{ccc}-x+5y=20\\-2x+12y=60&\text{divide both sides by (-2)}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}-x+5y=20\\x-6y=-30\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad-y=-10\to\boxed{y=10}\\\\\text{Put the value of y to the second equation:}\\\\x-6(10)=-30\\x-60=-30\qquad\text{add 60 to both sides}\\\boxed{x=30}\\\\Answer:\ \boxed{x=30\ and\ y=10\to(30,\ 10)}[/tex]
How do you solve a absolute value problem ?
Answers
Step-by-step explanation:
Step 1: Isolate the absolute value expression.
Step 2: Set the quantity inside the absolute value notation equal to + and - the quantity on the other side of the equation.
Step 3:Solve for the unknown in both equations.
Step 4:Check your answer analytically or graphically.
I hope this helps!
Final answer:
In mathematics, solving absolute value problems involves finding the value of an unknown variable within the absolute value expression. Here is a step-by-step process to solve an absolute value problem: Isolate the absolute value expression, remove the absolute value bars, solve the resulting equations, and check the solution. For example, to solve the equation |2x - 3| = 5, isolate the absolute value, solve for x, and check the solutions.
Explanation:
In mathematics, solving absolute value problems involves finding the value of an unknown variable within the absolute value expression.
Here is a step-by-step process to solve an absolute value problem:
Isolate the absolute value expression on one side of the equation.
Remove the absolute value bars by considering both positive and negative cases.
Solve the resulting equations to find the values of the variable.
Check the solution to ensure it is valid by substituting it back into the original equation.
For example, to solve the absolute value equation |2x - 3| = 5, we isolate the absolute value by moving the constant term to the other side: 2x - 3 = 5 and 2x - 3 = -5. Then we solve both equations separately to find the values of x: x = 4 and x = -1. Finally, we check the solutions by substituting them back into the original equation to ensure they satisfy the equation.
rectangle r was dilated to form rectangle r what is the scale factor for the dilation
Answers
Answer: The scale factor of the dilation is C. 5/2
Step-by-step explanation:
Can someone nice enough help me ASAP this is 5th Grade Math!
Answers
Hello from MrBillDoesMath!
Answer:
"He plans to sell the carrots for $5 per bunch..." is not needed
Discussion:
The question asked is "About how many bunches will the farmer make? The text "He plans to sell the carrots for $5 per bunch..." is not needed as it does not relate to the question asked.
Regards,
MrB
Answer:
He plans to sell the carrots for $5 per bunch is not needed and around 313 bunches can be made
Step-by-step explanation:
Jason combined 1 1/4 ounces of strawberry preserve from a jar with 7/8 of an ounce of strawberry preserve as a part of individual dessert bowls.
Jason plans on using 1/5 of an ounce of strawberry preserve in each dessert bowl. How many dessert bowls can he completely fill?
Answers
Answer: 10 dessert bowls.
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1. Rewrite 1 1/4 ounces as a fraction:
[tex](4+1)/4=\frac{5}{4}[/tex]
2. You must add 5/4 ounces of strawberry preserve and 7/8 ounce of strawberry preserve, as following:
[tex]\frac{5}{4}ounces+\frac{7}{8}ounces=\frac{17}{8}ounces[/tex]
3. Now you must divide the result obtained by 1/5:
[tex]\frac{17}{8}[/tex]÷[tex]\frac{1}{5}=10.62[/tex]
4. Therefore, you can conclude that 10 dessert bowls can be completely fill.
Student A completed an equation with variables on both sides. Did the student correctly solve the following equation? Describe and correct the error in solving the equation below. 5c−6=4−3c 2c−6=4 2c=10 c=5 NEED HELP ASAP !!!
Answers
Answer: Student A did not correctly solve the equation because they subtracted 3c to 5c instead of added.
ASAP
It is worked out that 3 ladles full of soup each will feed 150 people.
The customers have complained in the past that the portions are too small.
The cook decides to give 5 ladles full of soup to each person.
How many people can now be fed soup?
I only have one shot at this question and the answer is not 800
Answers
Answer: 90 people
Step-by-step explanation:
3 ladles per person = 150 people x 3
= 450 ladles full
450 ladles full = 5 ladles per one person = 450/5 = 90 people
which of the following shows the algebraic solution and the graphical solution of the inequality 6d - 7 > 11
Answers
[tex]6d-7>11[/tex] add 7 to both sides
[tex]6d>18[/tex] divide both sides by 6
[tex]d>3[/tex]
Triangle ABC A(3, 0) B(10, 1) C(6, 3)
Answers
Answer:
See picture.
Step-by-step explanation:
There you go.
Give the required elements of the hyperbola. 4x^2 - y^2= 16 The value of b is:
Answers
Answer:
a = 2
b = 4
Step-by-step explanation:
4x² - y² = 16
General equation for a horizontal hyperbola:
(x-h)²/a² - (y-k)²/b² = 1
with center (h,k) & vertices (h±a,k)
Divide by the constant
4x²/16 - y²/16 = 1
x²/4 - y²/16 = 1
x²/2² - y²/4² = 1
center (h,k) = (0,0)
a = 2
b = 4
Answer:
a = 2
b = 4
Hope this helps you
if the correlation coefficient is 0.96, how confident can you be that your predicted value for the cost of a call at 70 minutes is close to the exact value for the cost of a call at 70 minutes?
Pick one of the options below and explain your answer?
Very confident
Somewhat confident
Not confident
Answers
Answer:
Very confident
Step-by-step explanation:
The closer the correlation coefficient is to 1, the stronger the correlation. Anything above .4 is relatively strong. So I would be very confident.
HELP ASAP !!!
which variable is most important to the following problem? A company has 95,000 shares of stock to sell. A stockbroker decides to buy 150 shares of the stock for each of her 250 clients. How many shares will the company have left to sell after the stockbroker makes her purchase
A. the number of shares the stockbroker bought for each customer
B. the price of one share
C. the number of shares remaining after the stockbroker buys shares for her customers
Answers
Answer: the price of shares is never mentioned
the number of shares bought for each customer (what customers? does customer = client?) .... bought for each client is what you're solving for
so C. number of shares remaining to be sold
if 95,000 shares available before sale, 75,000 after, 20,000 were sold.
20,000 shared among 250 people is 80 shares each.
Answer:
C. the number of shares remaining after the stockbroker buys shares for her customers
Step-by-step explanation:
Here Most important variable is asked, So Option (C) is the best choice. It is the most important variable for finding the number of shares the company has left.
Option (A) can't be chosen because it is comparatively less important than option (C).
Option (B) never can be an important variable since the price of shares is not given.
Also, The number of shares the company has left after stockbroker's purchase = 95000 - 150×250 = 57500.
3
5
of students at a school are boys. If there are 2420 students at the school, how many are girls?
Answers
Question
3/5 of students at a school are boys. If there are 2420 students at the school, how many are girls?
Answer:
968 girlsStep-by-step explanation:
if 3/5 are boys 2/5 are girls (5 - 3/5 = 2/5)
so 2420 * 2/5 = 968 girls
Answer: 968 girls in the school.
Step-by-step explanation:
you just multiply 3/5 by 2420 and you get how many boys are in the school, 1452. then subtract 2420- 1452 and get 968. Hope this helped :)
Lee can read at a rate of 1,100words in 5 minutes.Write and solve a world problem that uses this information
Answers
What is the slope of y = (2/3)x?
Answers
Answer:
slope = [tex]\frac{2}{3}[/tex]
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
y = [tex]\frac{2}{3}[/tex] x is in this form
with slope m = [tex]\frac{2}{3}[/tex] and c = 0
Angeline bought s yards of satin fabric priced at $8.09 per yard, and c yards of cotton fabric priced at $3.79 per yard. What expression could you use to determine the total cost of the fabric? If she bought 5 yards of satin fabric and 8 yards of cotton fabric, how much did Angeline spend in all?
Answers
Answer: 11.88
Step-by-step explanation: First You Add 8.09 then you add 3.79 Therefore your answer is 11.88
Hope This Helps You Ace Your Test
Answer:
$70.77
Step-by-step explanation:
Let represents the total cost. We know for our problem that each yard of satin fabric costs $8.09, so yards will cost . similarly, each yard of cotton fabric costs $3.79, so yards will cost . We can also infer that the total cost, , will be the sum of the yards of satin fabric and the yards of cotton fabric, so:
Now, to determine the amount that Angeline would spend in all if she bought 5 yards of satin fabric and 8 yards of cotton fabric, we just need to replace and in our expression:
We can conclude that if Angeline would spend in all if she bought 5 yards of satin fabric and 8 yards of cotton fabric, she would spend $70.77
Will give 11 points and brainlest and thank
Preamble to the U.S. Constitution
"We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defense, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America."
rewrite the Preamble using ur own words
Answers
Answer: We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defense, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States
Step-by-step explanation:
the difference of 3ab and 7bc
Answers
The mathematical expression for the given phrase "the difference of 3ab and 7bc" is 3ab - 7bc
Translating the phrase into a mathematical expressionTo translate the phrase "the difference of 3ab and 7bc" into a mathematical expression, we can use the subtraction operation, which is denoted by the "-" symbol.
The difference between two terms is the result of subtracting one term from the other. In this case, we have two terms: 3ab and 7bc. To find the difference between them, we need to subtract one from the other.
The phrase "the difference of 3ab and 7bc" can be written mathematically as: 3ab - 7bc
Read more about inequality at
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I need help answering this please
Answers
Answer: Choice D) ordered pair is not a solution to the second equation
We can see this by replacing x and y with 1 and -4 respectively
2x + y = 4
2*1 + y = 4 .... replace x with 1
2*1 + (-4) = 4 ... replace y with -4
2 - 4 = 4
-2 = 4 .... this equation is false because -2 and 4 are different values
The last equation being false means that the original equation 2x+y = 4 is also false when (x,y) = (1,-4). Therefore, this ordered pair is not a solution to the second equation 2x+y = 4
A solution to the system must make BOTH equations true simultaneously, not just one.
Answer:
D
Step-by-step explanation:
2x + y = 4
If you substitute x = 1, and y = -4, then
2(1) - 4 = 2 - 4 = -2 not 4
Please help! I'm geting the wrong answer and i don't know why
8(x + 1) - 3(x + 4) = 7(2 - x)
Answers
Simplify 2(a+5)−3(5a−4)
Answers
Answer:
[tex]-13a+22[/tex]
Step-by-step explanation:
we have
[tex]2(a+5)-3(5a-4)[/tex]
step 1
Apply the distributive property both terms
[tex]2a+2(5)-3(5a)+3(4)[/tex]
[tex]2a+10-15a+12[/tex]
step 2
Combine like terms
[tex](2a-15a)+(10+12)[/tex]
[tex](-13a)+(22)[/tex]
[tex]-13a+22[/tex]
which is a correct two-column proof? Given: <H and <X are supplementary. prove: l || n
Answers
Answer:
option-B
Step-by-step explanation:
we are given
<H and <X are supplementary angles
so,
<H+<X=180
we know that
<H and <E are vertically opposite angles
so, they must be equal
<H=<E
we can plug it
<E+<X=180
It means that angle(E) and angle(X) are supplementary angles
and these two angles are same side interior angles
By using same side interior angles converse
so, line(l) and line(n) must be parallel
so, option-B
Answer:
Option (B) is correct
Step-by-step explanation:
∠H and ∠X are supplementary as given, ∠H + ∠X = 180
And, ∠H = ∠E ( Vertical opposite angles are equal )
So, by substitution ∠E + ∠X = 180
So, the sum of same side interior angles ∠E and ∠X is 180 therefore, by using converse of same-side Interior angles theorem we get l║m.
The correct option is B
first to answer will be the brainliest
Answers
Answer:
y =5x
Step-by-step explanation:
k = y/x is the ratio for proportional relationships
k = 10/2
k = 5
Rewriting this equation
y= kx
y =5x
Answer: y=5x
Step-by-step explanation:
2x5=10
4x5=20
If 10 pencils and 7 erasers cost $4.23 and 3 pencils and 1 eraser cost $0.95, what is the cost of 2 erasers?
Answers
Answer: $0.58
Step-by-step explanation:
Let x represent pencil and y represent eraser
10x + 7y = 4.23 → 1(10x + 7y = 4.23) → 10x + 7y = 4.23
3x + y = 0.95 → -3(3x + y = 0.95) → -21x - 7y = -6.65
-11x = -2.42
÷-11 ÷-11
x = 0.22
3x + y = 0.95
3(0.22) + y = 0.95
0.66 + y = 0.95
y = 0.29
2y = 2(0.29) = 0.58