Unit 9 Review

At what point does the axis of symmetry intersect a parabola?

• The y-intercept.

• The vertex.

• The x-intercept.

• The maximum.

Does this graph have a maximum or minimum value?

• maximum
• minimum
• neither
• both

What is the equation of the axis of symmetry?

• y = 4

• y = -4

• x = 4

• x = -4

Is this a max or min?

• max
• min
• cannot be determined

What is the vertex?

• (2, 4)
• (3, -1)
• (0, 8)
• (4, 2)

What are the coordinates of the y-intercept?

• (-3, 0)
• (0, -3)
• (2, 1)
• y=-3

What is the range of this quadratic function?

• All real numbers.
• [2, infinity)
• [4, infinity)
• (negative infinity, 4]

What is the range of this function?

• All real numbers.
• [2, infinity)
• [-2, infinity)
• [0, infinity)

Find the zeros.

• x = 0 and 4
• x = 0 and -4
• x = 0
• x = -4

What is the interval of decrease?

• (negative infinity, -2)
• (-2, infinity)
• (2, infinity)
• (negative infinity, 2)