Chapter 3 Test Review

Is the relation a function? 
{(4,5), (4,-7), (4,2), (4,0), (4,9)}

• Yes
• No

Is this table a function or not a function? 

• Function
• Not a Function

Is this mapping a function or not a function? 

• Function
• Not a Function 

Is this a function? Explain.

• Yes; it passes the horizontal line test.
• No; it is not a straight line.
• Yes; it passes the vertical line test.
• No; there is a line connecting the dots.

Is this graph a function or not a function? 

• Function 
• Not a Function

For the function f(x) = -3x + 3 find f(0).

• 0
• -3
• 3
• -1

If f(x) = -3x - 8, find f(-1).

• f(-1) = 5

• f(-1) = -5

• f(-1) = -12

• f(-1) = -10

Let w(x) = 3x - 7. If w(x) = 14, find x.

• 7
• 35
• 2.33333
• -49

If f(x) = x - 5, what is the value of x when f(x) = 15?

• 20
• 10
• 5
• 0

Is the function Linear or Nonlinear?

• Linear
• Nonlinear