Increasing Decreasing Functions Intervals

Identify where the function is decreasing.

• x < -4 , x > 1

• -4 < x < 1

• -6 < x < 7.5

• All Real Numbers

Identify where the function is increasing.

• x < -5 , x > 8

• -1 < x < 8

• -5 < x < -1 , x > 8

• x < -5 , -1 < x < 8

When is this function increasing?

• −2.5 < x < 2.5

• 0 < x < 5

• 0 < x < 55

• −5 < x < 0

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

For what intervals of x  is f(x) increasing?

• x≤-2 and x≥0

• -2≤x≤0

• x≥1

• x≤-2

On which interval(s) is the given function increasing?

• (-∞, 2) U (-2, ∞)

• (-2, 2) U (-2, ∞)

• (-∞, -2) U (0.5, ∞)

• (0, 2) U (0.5, ∞)

For what intervals of x is f(x) decreasing?

• -1<x<4

• -1<x

• -7<x<2

• x≥0

What is the interval of increase of this function?

• (1, ∞)

• None

• (2, ∞)

• (-∞, ∞)

Which interval best describes where the graph is increasing?

• The interval (-π/2, π/2)

• The interval (-π, -π/2) and (π/2, π)

• The interval (-π, π)

• The graph does not increase

For what intervals of x is f(x) decreasing?

• x≤0

• x≥0

• -2<x<2

• x>-2