Increasing and Decreasing Intervals of Parabolas

When is the function decreasing?

• (30, 55)

• (40, 60]

• (15, 40)

• (60, -40)

Where is the function decreasing?

• (-∞, -1)
• (-1, ∞)
• (-∞, 3)
• (-∞, ∞)

When is this function increasing?

• (-3, 3)

• (-2.5, 2.5)

• [-3, 3]

• (3, ∞)

When is this function decreasing?

• (-3, 3)

• (-∞, -3) U (3, ∞)

• (-∞, -3] U [3, ∞)

• [-3, 3]

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, ∞)

Describe the interval(s) over which the given function is decreasing.

• (-∞, 0) U (2, ∞)

• (5, -4) U (0, -3)

• (-3, 0) U (2, 3)

• (2, 3)

How would you describe the behavior of this function on the domain interval (-1, 1)?

• increasing

• decreasing

• constant

Does this function have an absolute maximum?

• Yes 
• No

When is this function increasing?

• -3<x<3

• -2.5<x<2.5

• x>2.5

• x>3

Where is the function decreasing?

• x<−2.5 and 2.5<x<0

• x<-2.5 and x>0 and x>2.5

• x<−2.5 and 0<x<2.5

• x>-2.5 and 0<x>2.5