Quadratic Equations Standard Form and Vertex Form

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4

• x = 4

• y = 4

• y = -4

What do we call the highest or lowest point of a quadratic?

• parabola

• vertex

• graph

• point

What is the vertex?
f(x) = -x² - 4x + 12.

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

Graph the quadratic.

• A

• B

• C

• D

Graph the quadratic.

• A

• B

• C

• D

Which of the following equations does not represent a quadratic function?

Does the graph of

y = -2(x + 5)² + 2

have a minimum or a maximum?

• Minimum

• Maximum

• It has neither.

• It has both.

Given: y = 2(x - 5)² + 6, the vertex is

• (2,-5)

• (-5,6)

• (2,6)

• (5,6)

How many zeros does this parabola have?

• 3

• 2

• 0

• 1

What is the formula to find the axis of symmetry?