Describing Graphs of a Function

Does the graph represent a function?

• Yes, because the vertical line test shows there are no repeating input values

• No, because the vertical line test shows there are repeating input values

• Yes, because the points are discrete

• No, because the points are not continuous

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

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

When is this function increasing?

• -2.5 < x < 2.5

• 0 < x < 5

• 0 < x < 55

• -5 < x < 0

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

Tags

CCSS.HSF.IF.B.4

Which graph represents the equation:

y = 2x + 2

• 
• 
• 
• 

This graph shows the temperature in the lab for an entire experiment. (Determine which statement(s) is/are true, select ALL that apply)

• The temperature reached its highest point during the experiment at Hour 12.

• The temperature was at its lowest when the experiment began.

• The temperature was decreasing for more hours than it was increasing during the experiment.

• The temperature at the end of the experiment was equal to the temperature at the beginning of the experiment.

Tags

CCSS.HSF.IF.B.4

What is the best description of this function as it related to increasing/decreasing?

• increases as x goes from - ∞ to 0, then decreases from 0 to + ∞

• it is a decreasing function 

• It is an increasing function

• decreases as x goes from - ∞ to 0, then increases from 0 to + ∞

Tags

CCSS.HSF-IF.C.7A

What is the best description of this function as it related to increasing/decreasing?

• increases as x goes from - ∞ to -1, then decreases from -1 to + ∞

• it is a decreasing function

• It is an increasing function

• decreases as x goes from - ∞ to -1, then increases from -1 to + ∞