Functions

Which groups of ordered pairs could represent functions? Select all that apply.

• (1, 2), (1, 3), (1, 6), (1, 8)

• (−5, 5), (−4, 4), (−3, 3), (−2, 2)

• (−2, 4), (−1, 1), (0, 0), (1, 1)

• (−3, 4), (−2, 3), (−3, 5), (−2, 4)

• (0, 0), (1, 0), (7, 0), (9, 0)

Which table shows a linear function with the same y-intercept as the graph shown?

• x: -1, 0, 1

  y: -4, -3, -2

• x: -1, 0, 1

  y: -3, -2, -1

• x: -3, 0, 3

  y: 0, 2, 4

• x: -4, -2, 1

  y: 1, -3, -4

Which are nonlinear functions? Select ALL that apply.

• A) y = -x²

• B) decreasing function

• C) increasing function

• D) table of a function

• Best Diner is always more expensive per person than Ace Diner.

• Ace Diner is always more expensive per person than Best Diner.

• Ace Diner is less expensive per person when there are fewer than 18 people in the group.

• Best Diner is less expensive per person when there are fewer than 18 people in the group.

Which set of ordered pairs represents a function?

• {(0, -1); (0, 0); (1, 1); (2, 2)}

• {(0, 1); (1, -1); (1, 1); (2, 1)}

• {(0, 0); (1, -1); (2, 1); (3, 0)}

• {(0, 0); (0, 1); (0, 2); (0, 3)}

Which function is represented by the graphed line?

Which statement describes the function shown?

• A) The function is nonlinear and increasing.

• B) The function is nonlinear and decreasing.

• C) The function is linear and increasing.

• D) The function is linear and decreasing.

Which function is represented by the graphed line?

What is the rate of change between (3, 14) and (5, 22)?

• 2

• 4

• 6

• 8

Which graph shows a nonlinear increasing function?

• Third graph
• Fourth graph
• First graph
• Second graph