10/31 Functions Review

Is this mapping a function or not a function? 

• Function
• Not a Function

Is this graph 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 a function

• yes

• no

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

Given h(x) = 5 - 9x, find h(8). 

• h(8) = -360
• h(8) = -67

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

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

• -1
• 1
• 5
• -5

given g(x)= 5x+7 find f(10)

• 120
• 66
• 57