Quiz 1 Review

Does the graph above represent a function? Explain how you know.

Does the table below represent a linear function? Why or why not?

Is this a function? Explain

Is this mapping a function or not a function? 

• Function
• Not a Function

Evaluate f(x) = 3x - 4 at f(3)

• 5
• 13
• 2

Evaluate f(x) = -3x + 4 at f(-2)

• -2
• 2
• 10

Evaluate f(x) =(2x + 8)/x at f(2)

• 12
• 6
• 14

f(x) = 3x + 10
g(x) = x - 2
Find f(g(0))

• 16
• 4
• -4
• None of these.

If f(x) = 3x-1 and g(x) = x²+2,

what is (f ° g)(x) ?

• 3x² +5

• x² +1

• 3x² +1

• 3x² +6

Find g(- 2).

• 12

• -2

• -24

• 18