Functions Unit Practice Test

• A only

• B only

• Both A and B

• Neither A nor B

A graphed line has a slope of -2 and passes through the point (3, 5). Which equation represents the line?

• y = -4x - 2

• y = -2x - 1

• y = -4x + 2

• y = -2x + 11

Which is a true statement about the graph shown?

• It represents a function because it contains (0, 0).

• It represents a function because it is a curved line.

• It represents a function because it passes the vertical line test.

• It does not represent a function because it is not proportional.

What is the slope and y-intercept on the graph?

• slope: 2

  y-intercept: 9

• slope: -40

  y-intercept: 180

• slope: 40

  y-intercept: 180

• slope: -1

  y-intercept: 0

Which is a true statement?

• A. The book has a total of 160 pages.

• B. Kelsie reads 30 pages per hour.

• C. After 2 hours, Kelsie has read 100 pages of the book.

• D. It will take her 6 hours to read the book.

Which of the following equations represents a non-linear function?

• y = 2x

• y = -4x - 4

Which correctly describes the graph?

• Linear; function

• Linear; not a function

• Non-linear; function

• Non-linear; not a function

• Yes, because the rate of change is constant.

• No, because the input of 8 has two outputs

• Yes, because the values of x and y are proportional.

• No, because the values of x and y are not proportional.

The following set of ordered pairs represents a functional relationship between x and y:

{(-4, -9), (2, 5), (0, 7), (-5, -1), ____}

Which of the following could be the missing ordered pair?

• (-5, 7)

• (1, 6)
• (2, 8)

• (0, 0)

10. Matt and Jared are building signs for an upcoming craft fair. The relationship between x, the number of hours spent working and y, the number of signs built for each person is shown below. Who is building signs at a faster rate?

• Matt

• Jared

• Both at the same rate

• Cannot be determined