Is this table a function? Why?

Yes, because none of the inputs repeat.

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

No, because the inputs repeat and have different outputs.

Is the graph a function? Why?

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

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

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

The green one because it is the most steep.

The blue one because it is the most steep.

The blue one because it is the least steep.

Is this table a function? Explain.

No because the inputs repeat and have different outputs

Yes, because none of the inputs repeat.

Yes, because the inputs repeat but have the same output

What is the domain of this function?

All real numbers (because graphs never end)

All the numbers between -2 and 2

All the numbers except between -2 and 2

What is the domain of this function?

All real number bigger than or equal to 0

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?

After 4 hours of work, Derek makes $37.

Derek needs $4 more to have $37 total.

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

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

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?

After 8 days, Ms. Brackemyer has 52 pencils.

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

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

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

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.

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

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

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

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

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled. Select the true statement below.

The total capacity of the water tank is 400 gallons.

The total capacity of the water tank is 2000 gallons.

The rate of change for the graph is 300 gallons per hour.

The rate of change for the graph is − 2 5 -\frac{2}{5} − 5 2 .

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

Sarah is travelling at a constant speed

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

The object is moving at a constant speed.

What is happening at D?

Fast steady speed; moving away from the starting position

Slower steady speed; moving away from the starting position

What is happening at A?

Slower steady speed; moving away from the starting position

Steady speed; returning to start position

Describe the bus’s motion from A-B

B)The bus's speed is remaining constant

D)The bus is beginning to slow down

Describe the bus’s motion from C-D

The bus's speed is remaining constant

The bus is beginning to slow down

Describe the bus’s motion from B-C

D)The bus is beginning to slow down

B)The bus's speed is remaining constant

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

The object is moving at a constant speed.

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

The object is moving at a constant speed.

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Interpreting Functions Review

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Mathematics

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9th Grade

•

Practice Problem

•

Medium

•

CCSS

HSF.IF.B.4, HSF.IF.A.2, 8.EE.B.5

+13

Standards-aligned

Justin VanDyke

Used 7+ times

FREE Resource

39 questions

Show all answers

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

At what rate did the rain fall?

2 cm per hour

¹/₄ cm per hour

¹/₂ cm per hour

4 cm per hour

Tags

CCSS.8.EE.B.5

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which company shows a greater rate of change?

Water's Edge Rafts

Ryan's Rafts

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What does the slope represent in this situation?

The sloth runs 1 feet in 3 minutes

The sloth runs 3 feet in 1 minute

The sloth runs fast

The sloth runs 6 feet in 1 minute

Tags

CCSS.8.EE.B.5

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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?

y = 3x + 20

y = 3 + 20x

y = -3x + 20

y = -20x + 3

Tags

CCSS.6.EE.C.9

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

(-9,0)

(-2,3)

(4,-2)

(0,5)

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

location

initial value

total

constant rate

Tags

CCSS.HSF-IF.C.7A

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the meaning of the y-intercept?

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

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

The starting weight of the sand is 1 pound.

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

Tags

CCSS.HSF.LE.B.5

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Interpreting Functions Review

39 questions

At what rate did the rain fall?

Which company shows a greater rate of change?

What does the slope represent in this situation?

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?

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

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

What is the meaning of the y-intercept?

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

Is this table a function? Why?

Is the graph a function? Why?

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