Quadratics Interval of Increase and Decrease

What are the intervals of increase and decrease

• Interval of increase:  ( - infinity, 2)

  Interval of decrease:  (2, + infinity)

• Interval of increase:  ( - infinity, 24)

  Interval of decrease:  (24, + infinity)

• Interval of increase: (2, + infinity)

  Interval of decrease:   ( - infinity, 2)

• Interval of increase:  (24, + infinity)

  Interval of decrease:  ( - infinity, 24)

What are the intervals of increase and decrease?

• Interval of increase:  ( - Infinity, 0)

  Interval of decrease:  ( 0, + Infinity)

• Interval of increase:  ( - Infinity, -9)

  Interval of decrease:  ( -9, + Infinity)

• Interval of increase:  ( 0, + Infinity)

  Interval of decrease:  ( - Infinity, 0)

• Interval of increase:  ( -9, + Infinity)

  Interval of decrease:  ( - Infinity, -9)

What are the intervals of increase and decrease?

• Interval of increase:  ( 2, + Inifinity)

  Interval of decrease: ( - Infinity, 2)

• Interval of increase:  ( 0, + Inifinity)

  Interval of decrease: ( - Infinity, 0)

• Interval of increase:  ( - Infinity, 2)

  Interval of decrease: ( 2, + Inifinity)

• Interval of increase:  ( - Infinity, 0)

  Interval of decrease: ( 0, + Inifinity)

Where is the function decreasing?

• (-∞, -1)

• (-1, ∞)

• (-∞, 3)

• (-∞, ∞)

The intervals in which the function f given by f (x) = x² – 4x + 6 is increasing is

• none of these

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]

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)

Where is the decreasing?

• ( −∞, −2.55) U (0, 2.55)

• (∞, −6.25) U (36, −6.25)

• ( −∞, −2.55] U [0, 2.55]

• (−∞, 0)

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, ∞)