The cost of Patrick’s texting is described by y = 0.03x + 5. The cost of Melanie’s texting is shown in the table. Which service is cheaper when 50 texts are sent or received in one month?

Patrick’s service would cost $6.50. Melanie’s would cost $12.50. Patrick’s is cheaper.

Patrick’s service would cost $4.50. Melanie’s would cost $10.50. Patrick’s is cheaper.

Patrick’s service would cost $16.50. Melanie’s would cost $12.50. Melanie's is cheaper.

Patrick’s service would cost $12.50. Melanie’s would cost $6.50. Melanie's is cheaper.

The cost of Patrick’s texting is described by y = 0.03x + 5. The cost of Melanie’s texting is shown in the table. Which service is cheaper when 50 texts are sent or received in one month?

Patrick’s service would cost $6.50. Melanie’s would cost $12.50. Patrick’s is cheaper.

Patrick’s service would cost $4.50. Melanie’s would cost $10.50. Patrick’s is cheaper.

Patrick’s service would cost $16.50. Melanie’s would cost $12.50. Melanie's is cheaper.

Patrick’s service would cost $12.50. Melanie’s would cost $6.50. Melanie's is cheaper.

Compare the rates of change.

The rate of change of item II is greater than the rate of change of item I.

The rate of change of item I is greater than the rate of change of item II.

The rate of change of item I is equal to the rate of change of item II.

Compare the initial values of each function.

The initial value of item I is greater than the initial value of item II.

The initial value of item I is equal to the initial value of item II.

The initial value of item II is greater than the initial value of item I.

Determine if the following functions are increasing or decreasing.

The function in item I is increasing, and the function in item II is decreasing.

The function in item I is decreasing, and the function in item II is increasing.

Compare the rates of change.

Both items have the same rate of change.

The rate of change of item II is greater than the rate of change of item I.

The rate of change of item I is greater than the rate of change of item II.

Determine whether the following functions are increasing or decreasing.

The function in item I is decreasing, and the function in item II is increasing.

The function in item I is increasing, and the function in item II is decreasing.

Compare the initial values of the functions.

Both functions have the same initial value.

The initial value of item I is greater than the initial value of item II.

The initial value of item II is greater than the initial value of item I.

Which of the following statements correctly describes the item shown above?

The items have different rates of change, but have the same steepness.

The items have different rates of change, and item I is steeper.

The items have different rates of change, and item II is steeper.

The items have the same rate of change.

Compare the initial values and the rates of change.

The y-intercepts are the same, but the rates of change differ.

The functions have different initial values and different rates of change.

The rates of change are the same, but the initial values are different.

The functions have the same initial value, but the rates of change differ.

Compare Functions

Quiz

•

Mathematics

•

8th Grade

•

Practice Problem

•

Medium

•

CCSS

8.F.A.2, 8.F.A.3, 8.F.B.4

+4

Standards-aligned

Anthony Clark

Used 4+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Is this function linear or nonlinear?

Linear

Nonlinear

Tags

CCSS.8.F.A.3

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The cost of Nate’s service is described by y = 4x + 6. The table shows the cost of Beth’s service. Which service is cheaper for 8 movies in one month?

Beth's service ($38 vs. $40) is cheaper

Nate’s service ($42 vs. $44) is cheaper

Nate’s service ($38 vs. $40) is cheaper

Beth's service ($42 vs. $44) is cheaper

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Find the rate of change

3

-3

20

Not a constant slope/Non-Linear

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Is this function linear or nonlinear?

Linear

Nonlinear

Tags

CCSS.8.F.A.3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Two linear functions are shown below. Which function has the greater initial value?

Function A

Function B

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Function J, -6

Function J, 8

Function K, 5

Function K, 10

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Function J, -6

Function J, 8

Function K, 5

Function K, 10

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

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Is this function linear or nonlinear?

The cost of Nate’s service is described by y = 4x + 6. The table shows the cost of Beth’s service. Which service is cheaper for 8 movies in one month?

Find the rate of change

Is this function linear or nonlinear?

Two linear functions are shown below. Which function has the greater initial value?

Which statement is true?

The cost of Patrick’s texting is described by y = 0.03x + 5. The cost of Melanie’s texting is shown in the table. Which service is cheaper when 50 texts are sent or received in one month?

The cost of Patrick’s texting is described by y = 0.03x + 5. The cost of Melanie’s texting is shown in the table. Which service is cheaper when 50 texts are sent or received in one month?

Create a free account and access millions of resources

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