Functions - Evaluating Graphs & Functions

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

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

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

• x = -5
• x = 5
• x = -50
• x = 30

If f(x) = 2x+1, what would the function look like once you substitute in a 1 to find f(1)?

• f(x) = 21+1

• f(1) = 2 (1) + 1

• f(1) = 2x (1) + 1

• 32

• 0

• -4

• 77

$f\left(x\right)=5x-12$ What is $f\left(-4\right)$

• -32

• -3

• -12

• 3

• 13

• 8

• 16

• answer not here

What is f(2)?

• -4
• 8
• 0
• 5

For what value of x does f(x) = -2?

• 0
• -5
• 3
• -3

What is the value of f(-5)?

• -2

• 2

• 4

• 0

What is f(5) for the function f?

f(x) = 2(x - 7)

• 3

• -4

• -3

• 1