Algebra 1: Step Functions, Set Notation & Composing Functions

• 34

• 71

• 35

• 142

When f(x) = 9-3x and g(x) = 5x-7 , find f(x)+g(x). 

• 14x-10
• -8x+2
• 2x+2
• 2x-2

• 0

• -6

• 6

• 18

What is the DOMAIN?

• (-∞, ∞)
• (-2, ∞)
• [-2, ∞)
• (-∞, 0) U (0, ∞)

What is the domain of the graph?

• [-7,5)
• (-7,5]
• [-3,1)
• (-3,1]

What is the range?

• (-4,5]
• [-4,5)
• (-3,3)
• [-3,3]

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

1. What is this type of function called?

• Discrete Function

• Segment Function

• Step Function

• Jump Function

• Linear