Quiz about Understanding Functions

Question 1

The graph of the linear function is shown on the grid. What is the rate of change?

(Remember, find 2 ordered pairs, subtract the y's on top and the x's on the bottom)

Accepted Answer

$$-\frac{1}{5}$$

Answer

$$\frac{1}{5}$$

Answer

$$5$$

Answer

$$-5$$

Question 2

Does the table represent a linear relationship between x and y?

Accepted Answer

Yes, the rate of change is 2.

Answer

No, the rate of change is not constant.

Answer

Yes the rate of change is 1.

Answer

No, the table does not represent a relationship/

Question 3

A recipe says to use 3 cups of flour to make 48 cookies. What is the constant of proportionality that relates the number of cookies made, y, to the number of cups of flour used in, x?

Accepted Answer

16

Answer

0.6

Answer

48

Answer

3

Question 4

The cost to operate a printer per page printed is $0.20. The table shows the total cost c based on the number of pages p printed. What is the total cost c to operate the printer if 420 pages are printed?

Accepted Answer

$84

Answer

$60

Answer

$470

Answer

$670

Question 5

Which of the following represents a function?

Accepted Answer

{ $$(1, 2)$$ , $$(2, 3)$$ , $$(3, 4)$$ }

Answer

{ $$(1, 2)$$ , $$(2, 3)$$ , $$(1, 4)$$ }

Answer

{ $$(1, 2)$$ , $$(2, 2)$$ , $$(3, 2)$$ }

Answer

{ $$(2, 1)$$ , $$(3, 2)$$ , $$(2, 3)$$ }

Question 6

The key words "per, each, for every" mean...

Accepted Answer

Constant Rate of Change

Answer

Independent Variable

Answer

Dependent Variable

Answer

Y-Intercept

Question 7

Describe the pattern input and output

Accepted Answer

The x goes right 2 and the y goes up 2

Answer

The input and output both go down by 3

Answer

The x goes up 1 and the y goes right 1

Answer

There is no pattern

Question 8

What is the missing value?

Accepted Answer

2

Answer

1

Answer

3

Answer

0

Question 9

Which relation shows a function?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 10

Which relation shows a function?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 11

Which relation shows a function?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 12

Which relation shows a function?

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 13

Which input value does NOT make this a function?

Accepted Answer

7

Answer

0

Answer

3

Answer

12

Question 14

Does the graph show a function?

Accepted Answer

Yes

Answer

No

Question 15

Is the mapping diagram showing a function?

Accepted Answer

No

Answer

Yes

Question 16

Is the graph showing a function?

Accepted Answer

Yes

Answer

No

Question 17

Which relation shows a function?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 18

Which relation shows a function?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Understanding Functions

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