3.1 - 3.4 Quiz Review

Is this mapping a function or not a function? 

• Function
• Not a Function

Does this table represent a function?

• Yes 
• No

What is the domain of the following relation:
(9, -2) (4, 3)  ( 8, 10) ( -4, 8)

• -4, 4, 8, 10

• -2, 3, 8, 10
• -4, 4, 8, 9

• (8, 10) (-4, 8)

What point is at (3, -2)?

• Point D
• No Point
• Point B
• Point E

What point is at (5, 3)?

• No Point
• Point B
• Point C
• Point A

Select ALL relations that are functions. (Hint: graph any equations and use the vertical line test)

• 
• 
• y = 2x +5

• 

Given the function g(x) = -x + 3x + 5, find the value g(-7)

• -9

• -23

• 33

• 19

Given the functions f(x) = -2x - 3 and g(x) = x + 13, find the value f(2) + 4.

• 15

• 19

• -7

• -3

Given h(x) = 12x - 5, find h(4) -10.

• 33

• 43

• 355

• 48

Identify where the function is positive and negative.

• positive: when x is between 3 and 4

  negative: when x < 3

• positive: never

  negative: always

• positive: when x < 3 and x > -4

  negative: when x < -4 and x > 3

• positive: when x < -4 and x > 3

  negative: when x is between -4 and 3