YL Test 2 Review (Functions)

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

• x-values and y-values

Is this mapping a function or not a function? 

• Function
• Not a Function 

Is this table a function or not a function? 

• Function
• Not a Function

Is this graph a function or not a function? 

• Function 
• Not a Function

For the function f(x) = -3(x-1) find f(0).

• 0
• -3
• 3
• -1

Evaluate f(-5) if f(x) = -2x - 12

• -22
• -2
• -19
• -5

If f(x) = 10, what is the value of x?

x + 2 = f(x)

Mathematical Equivalence

ON

f(x) = x+3

Find x when f(x) = 8

• -1

• 1

• 5

• -5

Evaluate f(-2) if f(x) = x+3

• -1

• 1

• 5

• -5

What is the range of the function shown?

• {10, 19, 26}
• {-3, 0, 4}
• {-3, 0, 4, 10, 19, 26}
• {0, 16}