Function Review

If I know that f(2) = 4, what is another way I can write my answer?

• (4, 2)

• 4, 2

• (2, 4)

• 2, 4

What variable represents the output?

• r

• d

• x

• y

Is this table a function or not a function

• Function

• Not a Function

What variable represents the input?

• y

• d

• x

• r

Function or Not a Function

• Not a Function

• Function

For the function f(x) = -3(x-1) find f(1).

• 0
• -3
• 3
• -1

Given f(x) = -4x - 10 and f(x) = 10. Find x

• x = -5
• x = 5
• x = -50
• x = 30

f(x) is the same thing as ______.

• y
• x
• input
• an equation

Sophie has $14 and plans to save $5 each week until she has $64 she needs for a new jacket. What is the equation to solve for Sophie to know how many weeks she will need to save?

• 64 = 14x + 5

• 5x + 64 = 14

• 5x + 14 = 64

• 5x - 14 = 64

• -72

• -56

• 56

• 72