Unit 4 Lesson 2 Practice Problems

• A:1, B:2, C:3, D:4

• A:2, B:4, C:3, D:1

• A:3, B:1, C:2, D:4

• A:3, B:1, C:4, D:2

Tags

CCSS.HSF.IF.A.2

Function C takes time for its input and gives a student’s Monday class for its output.

Use function notation to represent: A student has English at 10:00.

• y=10:00

• F(C)=10:00

• C(10:00)=English

• C(English)=10:00

Tags

CCSS.HSF.IF.A.2

Write a statement to describe the meaning of C(11:15)=chemistry.

• The student has chemistry class at 11:15.

• At 11:15, the student has chemistry class.

Tags

CCSS.HSF.IF.A.2

Function, f, gives the distance of a dog from a post, in feet, as a function of time, in seconds, since its owner left.

Find f(20).

• 3

• 3.1

• 3.2

• 3.3

Tags

CCSS.HSF.IF.B.4

Function, f, gives the distance of a dog from a post, in feet, as a function of time, in seconds, since its owner left.

Find f(140).

• 3

• 3.5

• 4

• 4.5

Tags

CCSS.HSF.IF.B.4

Function C gives the cost, in dollars, of buying n apples. What does each expression or equation represent in this situation?

C(5)=4.50

• Five apples cost $4.50

• When you spend $4.50, you get 5 apples.

• Four and a half apples cost $5.

• When you spend $5, you get 4.5 apples.

Tags

CCSS.HSF.LE.B.5

A number of identical cups are stacked up. The number of cups in a stack and the height of the stack in centimeters are related.

Can we say that the height of the stack is a function of the number of cups in the stack? Explain your reasoning.

• Yes. For every number of cups, there is one height in centimeters.

• No. For every number of cups, there is multiple heights in centimeters.

Tags

CCSS.HSF.IF.A.2

A number of identical cups are stacked up. The number of cups in a stack and the height of the stack in centimeters are related.

Can we say that the number of cups in a stack is a function of the height of the stack? Explain your reasoning.

• No. Each height in centimeters corresponds to more than one particular number of cups.

• Yes. Each height in centimeters corresponds to one particular number of cups.

Tags

CCSS.HSF.IF.A.2