Describing Trends and Graphs

What is the domain of the graph?

• x ≥ 1

• 1 ≤ x ≤ 5

• 1 ≤ x ≤ 4

• x ≤ 5

• All real numbers

What is the range of the graph?

• y ≥ 1

• 1 ≤ y ≤ 5

• 1 ≤ y ≤ 4

• y ≤ 5

• All real numbers

What is/are the increasing interval(s) for the function shown?

What is/are the decreasing interval(s) for the function shown?

Where is the decreasing?

• ( −∞, −2.55) and (0, 2.55)

• (∞, −6.25) and (36, −6.25)

• (−∞, ∞)

• (−∞, 0)

What is the range of this function?

• All real numbers.

• [2, infinity)

• [-2, infinity)

• [0, infinity)

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.

Which graph does NOT pass the vertical line test?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

What is the domain and range of this relation using inequalities?

• D: -4 < x ≤ 5

  R: -3 < y < 3

• D: -4 ≤ x < 5

  R: -3 < y < 3

• D: -3 < y < 3

  R: -4 ≤ x < 5

• D: -4 < x < 5

  R: -3 ≤ y ≤ 3

Over which interval of time is this person returning home?

• 8:00 < x < 9:00

• 9:00 < x < 9:30

• 9:30 < x < 11:00

• 12:00 < x < 13:00