What is the domain of the function?

All real numbers greater than -3

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.

T4: Interpreting Functions

Quiz

•

Mathematics

•

7th - 12th Grade

•

Practice Problem

•

Medium

•

CCSS

8.F.A.1, HSF.IF.B.5, HSF.IF.A.2

+5

Standards-aligned

Used 103+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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.

Tags

CCSS.8.F.A.1

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Is the graph a function? Why?

Yes, it's a perfect circle.

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

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

No - it's a perfect circle.

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.5

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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

The blue one because it is the most steep.

The blue one because it is the least steep.

The green one because it is the most steep.

The blue one because it is the least steep.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Is the graph a function? Explain.

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

No, because if I draw a vertical line, it crosses more than once.

No because it is not a straight line.

Yes because it looks like an S.

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Is this table a function? Explain.

Yes, because none of the inputs repeat.

Yes, because the inputs repeat but have the same output

No because the inputs repeat

No because the inputs repeat and have different outputs

Tags

CCSS.8.F.A.1

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Is the graph a function? Explain.

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

No because if I draw a vertical line, it crosses more than once

Yes because it does not go into the negative numbers

No because it's not a straight line

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.B.4

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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

All real numbers above -2

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

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T4: Interpreting Functions

15 questions

Is this table a function? Why?

Is the graph a function? Why?

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

Is the graph a function? Explain.

Is this table a function? Explain.

Is the graph a function? Explain.

What is the domain of this function?

What is the domain of this function?

What is the domain of the function?

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

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