Extended Algebra Functions Review

Which set of ordered pairs represents the relation shown in the graph?

• {(3, -5), (-2, 0), (2, 0), (-1, 1), (3, 5)}
• {(5, -3), (2, 0), (0, -2), (-1, 1), (-3, -5)}
• {(-5, 3), (0, -2), (2, 0), (1, -1), (3, 5)}
• {(-5, 3), (-2, 0), (0, 2), 1, -1), (3, 5)}

Is this set of ordered pairs a function or not a function? 

• Function
• Not a Function 

Which table represents the relation shown in the graph?

• x | y
  5 | 3
  -1 | 1
  2 | 0
  0 | -2
  3 | -5
• x | y
  1 | -1
  0 | -2
  2 | 0
  -5 | 3
  3 | 5
• x | y
  -5 | 3
  -2 | 0
  0 | 2
  1 | -1
  3 | 5
• x | y
  3 | 5
  -1 | 1
  0 | -2
  0 | 2
  -5 | 3

What is the domain of the relation shown in the graph above?

• {0, 1, 2, -2, 3}
• {1, 3, 0, -2, -5}
• {0, 2, -1, 3, 5}
• {-5, -2, 2,-1, 3}

What is the range of the relation shown in the graph above?

• {2, 0, 3, -1, 5}
• {0, 1, 3, -2, -5}
• {-2, 2, -1, 5, 3}
• {2, 0, -1, -5, 3}

Which statement is true about the relation {(-2, 4), (4, 2), (2, 4), -4, 2)}?

• The relation is NOT a function because all the y-values are not different.
• The relation is NOT a function because all the x-values are not different.
• The relation is a function because the y-values are different.
• The relation is a function because all the x-values are different.

Which of the following relations represents y as a function of x?
I. {(1, 4), (2, 5), (3, 6)}
II. {(1, 4), (2, 4), (3, 4)}
III. {(1, 4), (2, 4), (1, 3)}
IV. {(1, 4), (1, 2), (1, 3)}

• I, II, and III only
• II and IV only
• III and IV only
• I and II only

Which of the graphs shown is a function?

• F
• G
• H
• J

Which of the graphs shown does NOT represent a function?

• A
• B
• C
• D

Is the following a function? Explain.

• Yes, because it is on a graph.

• Yes, because it passes the vertical line test.

• No, because it fails the vertical line test.

• No, because it is a curved graph.