Evaluating Functions with Graphing

Evaluate f(2).

• f(2) = 5

• f(2) = 12

• f(2) = 10

• f(2) = 0.5

Evaluate f(6).

• f(6) = 18

• f(6) = 12

• f(6) = 10

• f(6) = 1

What is the value of x when f(x) = 16?

• x = 4 only

• x = 4 and x = 8

• x = 16

• Not on the graph

What is the value of x when f(x) = 10?

• x = 10 only

• x = 4 and x = 8

• x = 2 and x = 10

• No solution

Evaluate f(3).

• f(3) = 0

• f(3) = -2

• f(3) = 3

• f(3) = 4

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

• x = 0

• x = -5

• x = 3

• x = -3

If f(x) = 4x + 7, evaluate f(3).

• f(3) = 19

• f(3) = 14

• f(3) = 5

• f(3) = 12

• 
• 
• 
• 

If f(x) = 2x² + 5x - 3, evaluate f(4).

• f(4) = 4

• f(4) = 49

• f(4) = 25

• f(4) = 55

If f(x) = 2x² + 5x - 3, evaluate f(-1).

• f(-1) = -6

• f(-1) = 1

• f(-1) = -10

• f(-1) = -1