Functions

Given 
f(x)= 2x² + 5x - 17, find f(-1). 

• f(-1) = -20
• f(-1) = -24

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

• 0
• -5
• 3
• -3

Evaluate the function for the given value:

• -2
• 70
• 48
• 96

Evaluate the function for the given value:

• 1
• -11
• -15
• -1

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

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

Evaluate the function for the given value:

• -5
• 63
• 450
• 5

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

What is f(1)?

• 1
• 5
• 0
• 4