Linear Functions

Evaluate the function at x=8.

f(x)= 7x-5

• 35

• 16

• 51

• 61

Tags

CCSS.HSF.IF.A.2

Let f(x)= -8x-9, find f(-4).

• 23

• -41

• 41

• -23

Tags

CCSS.HSF.IF.A.2

Let f(x)= 3(-2x+7),

f(9)= A

f(18)= B

f(-5)= C

Write your answer like so,

A= (value), B= (value), C=(value).

(a)  

Tags

CCSS.HSF.IF.A.2

What is the value of f(6),

if f(x)= -4(x+3)+12?

• -48

• 24

• 72

• -24

Tags

CCSS.HSF.IF.A.2

Evaluate the function at x=3.2 .

f(x)= 6x-3+2x

• 18.2

• 21.6

• 22.6

• 28.6

Tags

CCSS.HSF.IF.A.2

Find f(20) if f(x)= 

 $\frac{1}{2}x+\frac{3}{4}$  

• 11

• 10 $\frac{3}{4}$  

•  $\frac{37}{4}$  

•  $13\ \frac{1}{3}$  

Tags

CCSS.HSF.IF.A.2

Lucy is three times as old as Peeta. 5 years ago, Peeta's age was twice of Lucy. Determine how old Lucy and Peeta are now.

Tags

CCSS.8.EE.C.8C

Part 1 of 3: Truck Rental problem.

A truck rental company charges $30 to rent a truck for the day, plus an additional charge for mileage. The total cost of renting a truck and driving 100 miles is $65.

Write a linear equation that relates the cost C of renting a truck to the number x of miles driven.

Tags

CCSS.HSF-BF.A.1A

Part 2 of 3. Truck Rental problem.

A truck rental company charges $30 to rent a truck for the day, plus an additional charge for mileage. The total cost of renting a truck and driving 100 miles is $65.

Using the linear equation you created in question 8, determine how many miles Jake drove if his cost was $110.50.

Tags

CCSS.7.EE.B.4A

Part 3 of 3. Truck Rental problem.

A truck rental company charges $30 to rent a truck for the day, plus an additional charge for mileage. The total cost of renting a truck and driving 100 miles is $65.

Using the linear equation you created in question 8, determine how much will it cost Kiley to drive a truck 300 miles?

Tags

CCSS.8.EE.C.7B