Key Characteristics of Quadratic Functions

Does the quadratic function have a maximum or a minimum?

• Maximum

• Minimum

Is the quadratic function concave up or concave down?

• Concave Up

• Concave Down

Does the quadratic function have a maximum or a minimum?

• Maximum

• Minimum

Is the quadratic function concave up or concave down?

• Concave Up

• Concave Down

What are the intervals of increase?

• (- infinity, -1)

• (- infinity, -3)

• (-1, infinity)

• (-3, infinity)

What is a parabola?

• The straight graph of a quadratic function

• The circular graph of a quadratic function

• The V-shaped graph of a quadratic function

• The U-shaped graph of a quadratic function

Using the graph of the quadratic function, identify the domain.

• y > -6

• -2 < x < 10

• all real numbers

• y < -6

Using the graph of the quadratic function, identify the range.

• y < -6

• -2 < x < 10

• -∞ < x < ∞

What is the axis of symmetry?

• A line whose equation is the x-coordinate of a parabola's vertex

• A central line that divides a parabola into mirror images

• A line that intersects a parabola at the vertex

• All of the above

How many solutions does this graph have?

• one

• two

• no solutions

• cannot be determined