Function Review

Answer.

• A
• B
• C
• D

Find the x- and y- intercepts of the line.
y=7x+5

• (-5, 0), (0, 5/7)
• (-5/7, 0), (0,5)
• (5,0), (0,-5/7)
• (5/7, 0), (0, -5)

Determine whether the relation is a function.

• Yes
• No

Answer

• A
• B
• C
• D

What is the range of the relation shown on the mapping diagram?

• R:{3, 5, 8}
• R:{-7, 11}
• R:{3, 5, 8, 12}
• R:{all real numbers}

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.

Answer.

• A
• B
• C
• D

Find the rate of change of the linear function shown : 1/3x - 3

• -3
• 3
• 1/3
• 3/1

Does the table represent a function?

• Yes, there  is a repeated x-value. 
• No, there aren't any repeated y-values. 
• Yes, there are repeated y-values. 
• No, there is a repeated x-value. 

Given the points (3, 5) (2, 4) (9, 0)  and  (?, 6). What could replace the ? to create a non-function? 

• 1
• 3
• 4
• 7