Quiz about Interpreting Functions Review

Question 1

At what rate did the rain fall?

Accepted Answer

2 cm per hour

Answer

¹/₄ cm per hour

Answer

¹/₂ cm per hour

Answer

4 cm per hour

Question 2

Which company shows a greater rate of change?

Accepted Answer

Water's Edge Rafts

Answer

Ryan's Rafts

Question 3

What does the slope represent in this situation?

Accepted Answer

The sloth runs 6 feet in 1 minute

Answer

The sloth runs 1 feet in 3 minutes

Answer

The sloth runs 3 feet in 1 minute

Answer

The sloth runs fast

Question 4

Sandra has a $20 itunes gift card and spends $3 each month.  Which equation can be used to find how much money Sandra has on her giftcard after x months?

Accepted Answer

y = -3x + 20

Answer

y = 3x + 20

Answer

y = 3 + 20x

Answer

y = -20x + 3

Question 5

Which of the following points is a y-intercept?
(-2,3) (4, -2) (0, 5) (-9,0)

Accepted Answer

(0,5)

Answer

(-9,0)

Answer

(-2,3)

Answer

(4,-2)

Question 6

Which of the following is another meaning of y-intercept?

Accepted Answer

initial value

Answer

location

Answer

total

Answer

constant rate

Question 7

What is the meaning of the y-intercept?

Accepted Answer

Before sand is put in the bucket, it weighs 1 pound.

Answer

The weight in the bucket increases by 1 pound per pound of sand.

Answer

The starting weight of the sand is 1 pound.

Answer

The weight in the bucket decreases by 1 pound per pound of sand.

Question 8

The graph shows the height (cm) of a candle as it burns, what does the y-intercept mean?

Accepted Answer

Candle starts at 9 cm.

Answer

Candle start at 4.5 cm

Answer

Candle starts at 0 cm.

Answer

The candle ends at 5 cm

Question 9

Is this table a function?  Why?

Accepted Answer

Yes, because none of the inputs repeat.

Answer

Yes, because the inputs repeat but have the same output.

Answer

No, because the inputs repeat and have different outputs.

Question 10

Is the graph a function?  Why?

Accepted Answer

No, if I draw a vertical line, it crosses twice.

Answer

Yes, it's a perfect circle.

Answer

Yes - if I draw a vertical line, it crosses only once.

Answer

No - it's a perfect circle.

Question 11

Which of the two linear functions above has the higher rate of change?  Explain.

Accepted Answer

The green one because it is the most steep.

Answer

The blue one because it is the most steep.

Answer

The blue one because it is the least steep.

Answer

The blue one because it is the least steep.

Question 12

Is this table a function?  Explain.

Accepted Answer

No because the inputs repeat and have different outputs

Answer

Yes, because none of the inputs repeat.

Answer

Yes, because the inputs repeat but have the same output

Answer

No because the inputs repeat

Question 13

What is the domain of this function?

Accepted Answer

All real numbers (because graphs never end)

Answer

All the numbers between -2 and 2

Answer

All the numbers except between -2 and 2

Answer

All real numbers above -2

Question 14

What is the domain of this function?

Accepted Answer

All real number bigger than or equal to 0

Answer

All real numbers

Answer

All real number bigger than 0

Answer

All real numbers less than 0

Question 15

Consider the function f(x)=9x+5.  Find f(7).

Accepted Answer

68

Answer

102

Answer

7

Answer

21

Question 16

Derek works at Subway making $9.25 an hour.  The function d(x)=9.25x tells us how much money Derek makes after x hours of working.  What is the meaning of d(4)=37?

Accepted Answer

After 4 hours of work, Derek makes $37.

Answer

Derek needs $4 more to have $37 total.

Answer

After working for 4 days, Derek makes $37 total.

Answer

After 4 hours of work, Derek now makes $37 an hour instead of $9.25.

Question 17

Ms. Brackemyer is collecting pencils.  The function p(x)=5x+12 tells us the total amount of pencils Ms. Brackemyer has after collecting for x number of days.  What is the meaning of p(8)=52?

Accepted Answer

After 8 days, Ms. Brackemyer has 52 pencils.

Answer

Ms. Brackemyer starts with 8 pencils and ends with 52.

Answer

Ms. Brackemyer starts with 52 pencils and gets 4 more every day.

Answer

Every day, Ms. Brackemyer gets 4 new pencils until she has 52.

Question 18

A company is selling bubble gum.  The function g(x)=3x+4 tells the company how much to charge if someone buys x packages of bubble gum.  Find g(8) and tell what it means within the context of the problem.

Accepted Answer

g(8)=28.  This means that 8 packages of gum costs $28.

Answer

g(8)=8.  This means that after 8 packages of gum, the company makes $8.

Answer

g(8)=42.  This means that 8 packages of gum costs $42.

Answer

g(8)=24.  This means that 8 packages of gum costs $24.

Question 19

Question 19.

Accepted Answer

1

Answer

0

Answer

-2

Answer

-1

Question 20

Question 20.

Accepted Answer

6

Answer

-6

Answer

4

Answer

-4

Question 21

Question 21.

Accepted Answer

5

Answer

-5

Answer

0

Answer

-1

Question 22

What is the domain of this graph?

Accepted Answer

[1, 5]

Answer

(1, 5)

Answer

(0, 3)

Answer

[3, 0]

Question 23

What is f(4) for this graph?

Accepted Answer

-4

Answer

0

Answer

1

Answer

4

Question 24

Where does r(x) = b(x) ?

(r is red, b is blue)

Accepted Answer

(0, 3) and (4, -5)

Answer

(3, -3) and (5, -2)

Answer

(2, 0) and (3, -6)

Answer

(3, 0) and (-5, 4)

Question 25

For what intervals, if any, is f(x) increasing?

Accepted Answer

[-2, 0]

Answer

(-4, 0)

Answer

[-2, 1]

Answer

[-4, 0]

Question 26

What is happening in the graph between 30 and 40 minutes?

Accepted Answer

Sarah is not moving

Answer

Sarah is accelerating

Answer

Sarah is slowing down

Answer

Sarah is travelling at a constant speed

Question 27

What is happening in this graph from point A to B? HINT: Look at the axis labels.

Accepted Answer

The object is moving at a constant speed.

Answer

The object is accelerating.

Answer

The object is not moving.

Answer

The object is decelerating.

Question 28

What is happening at D?

Accepted Answer

Fast steady speed; moving away from the starting position

Answer

Stationary

Answer

Accelerating

Answer

Slower steady speed; moving away from the starting position

Question 29

What is happening at A?

Accepted Answer

Stationary

Answer

Accelerating

Answer

Slower steady speed; moving away from the starting position

Answer

Steady speed; returning to start position

Question 30

Where is the object not moving

Accepted Answer

C-D

Answer

A-B

Answer

O-A

Answer

B-C

Question 31

What happened at point D going to E?

Accepted Answer

the bus started moving again

Answer

the bus turned around

Answer

the bus stopped

Answer

the bus slowed down

Question 32

Where is the object not moving?

Accepted Answer

B

Answer

A

Answer

C

Answer

E

Question 33

What is happening in this graph from point A to B? HINT: Look at the axis labels.

Accepted Answer

The object is moving at a constant speed.

Answer

The object is accelerating.

Answer

The object is not moving.

Answer

The object is decelerating.

Question 34

What happened during E to F point?

Accepted Answer

moving at a constant rate

Answer

not moving

Answer

moving faster than before

Answer

moving more slowly than before

Question 35

What is happening in this graph from point B to C? HINT: Look at the axis labels.

Accepted Answer

The object is slowing down.

Answer

The object is moving faster.

Answer

The object is not moving.

Answer

The object is moving at a constant speed.

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics