Intervals of Increase and Decrease Quadratic Function

Identify the intervals of increase for the quadratic function r(x) = 2x^2 - 4x + 1.

• x = 1

• x > 2

• x > 1

• x < 1

Identify the intervals of increase for the quadratic function f(x) = x^2 - 4x + 3.

• x < 2

• x > 4

• x > 2

• x < 1

Identify the intervals of decrease for the quadratic function g(x) = -2x^2 + 8x - 5.

• x = 2

• x < 2

• x > 5

• x > 2

Identify the intervals of decrease for the quadratic function s(x) = -x^2 + 5x - 2.

• x < 5/2

• x > 2

• x > 5/2

• x = 5/2

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

• none of these

When describing intervals of increase or decrease, you need to use...

• X-values only

• Natural numbers

• Fractions

• Negative numbers

Does this graph in the back have maximum or minimum value?

• maximum

• minimum

• neither

• both

The point (4, -3) is a...

• Maximum

• Minimum

When you have a parabola that changes directions from increasing to decreasing or increasing to decreasing, your answer will have an infinity symbol and what?

• axis of symmetry number

• Maximum and minimum points

• Vertex and y-intercept

• Vertex y-value

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)