Unit 5 Review - Functions (Algebra 1)

If f(x) = 2x + 1, find f(1).

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

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

Given f(x) =
2x² + 5x - 17, find f(-1). 

• f(-1) = -20
• f(-1) = -24
• f(-1) = -10

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

• x = -5
• x = 5
• x = -50
• x = 30

What is f(1)?

• 1
• 5
• 0
• 4

If f(x) = 4, Find the value for x.

• 0

• 1

• 2

• 3

Find f(1)

• 1

• 2

• -1

• 3

What is the definition of a function?

• Has inputs and outputs

• Inputs have different outputs every time

• x-values and

  y-values

• Every input has only one output

Is this mapping a function or not a function? 

• Function
• Not a Function 

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4