Function Intervals

The graph shows the altitude of an airplane over time. In which intervals is the graph of the function decreasing? Select all that apply.

• 5

• 7

• 1

• 3

• 6

Kerron traveled home and made several stops and detours along the way, as shown by the graph. In which intervals is the graph increasing? Select all that apply.

• F

• B

• C

• D

• E

How would you describe the graph of the function in interval 2? Select all that apply.

• The function is increasing.

• The slope is negative.

• The function is decreasing.

• The function is constant.

• The slope is positive.

What label is along the y-axis in this graph?

• Copyright 2007

• Lines

• Age in Years

• Number of Teens

Over what interval is this function constant?

• −5 < x < ∞
• −3 < x < 4
• 4 < x < ∞
• −5

At what interval is the function nonlinear?

• -2<x<2

• -3<x<-2

• 2<x<3

At which of the following intervals is the function constant?

• -2<x<2

• -3<x<-2

• -2<x<3

• -3<x<2

#7 - List the types of intervals that the graph demonstrates in order.

• decreasing, constant, increasing, constant
• increasing, decreasing, constant
• increasing, constant, increasing, constant
• increasing, constant, decreasing, constant

How long did Sam sit on the bench and wait for the bus?

• 5 min
• 10 min
• 15 min
• 20 min

At which of the following intervals is the function both nonlinear and decreasing?

• -4<x<1

• 1<x<3

• 3<x<9

• 9<x<12