Quadratic Functions

What is the vertex?

y = 4x² - 8x + 9

• (0, 9)

• (-1, 5)

• (1, -5)

• (1, 5)

What is the axis of symmetry?

f(x) = -3x² + 6x - 1.

• x = 1

• x = -1

• x = 2

• x = 0

What is the axis of symmetry?

y = 3x² - 6x + 4

• x= -1

• x= -6

• x= 2

• x= 1

What is the vertex?

f(x) = x² - 4x + 5.

• (-2,1)

• (0, 5)

• (2, 1)

• (-1, 2)

What is the axis of symmetry?

• -3

• 3

• 1

• -1

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

• parabola
• vertex
• graph
• point

How many zeros does this parabola have?

• 3

• 1

• 0

• 2

What is the y-intercept?

f(x) = x² - 8x + 9

• (9,0)

• (0,9)

• (0,-8)

• (0,1)

What is the y-intercept?

f(x) = -3x² + 6x - 4

• (0, -4)

• (0, 4)

• (4, 0)

• (-4, 0)

Does this parabola open up or down?

y = -10x² +12x + 8

• up

• down