Graphs of Quadratic Functions Test

What is the vertex?

• (-3, 0)

• (3, 0)

• (0, 18)

• (18, 0)

Which statement about the quadratic function is true?

• The minimum value is 2.

• The minimum value is -4.

• The y-intercept is (5,0).

• The x-intercept is (-1, 0).

Determine the domain and range of the function

• Domain: All real numbers, Range: All real numbers

• Domain: x ≥ -4, Range: All real numbers

• Domain: All real numbers, Range: y ≥ -4

• Domain: -1 ≤ x ≤ 5, Range: y ≥ -4

What are the zeros of the function? Select all that apply.

• x = 0

• x = -3

• x = -6

• y = 18

Does the vertex represents a max or min?

• max
• min

Does the parabola opens up/down?

• opens up

• opens down

Which key feature is the ordered pair (1, -2) to the given graph?

• It is the maximum point

• It is the vertex

• It is the y-intercept

• It is an x-intercept

Find the vertex.

• (2, -2)
• x = 2
• (-2, 2)
• (0, 4)

The graph of a quadratic function is called a

• Parabola
• Vertex
• Axis of Symmetry 
• Vertex Form

Find the decreasing interval.