Unit 4 Lesson 9 Practice Problems

Write "At 3 seconds, the toy rocket is higher than the drone" in function notation.

• R(3)<D(3)

• R(3)>D(3)

• D(3)>R(3)

• D(3)<R(3)

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Write "At the start, the toy rocket is 25 feet above the drone." in function notation.

• R(0)=25

• R(0)=D(3)+25

• D(0)=R(0)

• D(0)=R(0)+25

Tags

CCSS.HSF.IF.A.2

Which function had the higher average rate of change between the beginning of January and middle of March? What does this mean about the temperature in the two cities?

• Minneapolis

• Aspen

• They have the same rate of change.

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

• A

• B

• C

• D

One runner ran at a constant rate throughout the race. Which one?

• Runner A

• Runner B

• Runner C

Tags

CCSS.8.EE.B.5

A second runner stopped running for a while. Which one? During which interval of time did that happen?

• Runner A

• Runner B

• Runner C

Who won the race? Explain how you know.

• Runner A

• Runner B

• Runner C

Tags

CCSS.8.EE.B.5

Function f is represented by f(x)=5(x+11).

Find f(-2)

• 45

• 50

• 65

Tags

CCSS.HSF.IF.A.2

Function f is represented by f(x)=5(x+11).

Find a value for x such that f(x)=90.

• 9

• 8

• 7

• 6

Tags

CCSS.HSF.IF.A.2