9.04 Quiz

What is the vertex for
f(x)=4(x-2)² + 3

• (-2, 3)
• (2,-3)
• (4,3)
• (2,3)

Does the parabola
f(x)=4(x-2)² + 3
open up or down?

• up
• down

What is the vertex form of a quadratic function?

• f(x) = 2a(x-h)² + k

• f(x) = a(x-h)² + k

• f(x) = (x+h)² + k

• f(x) = a(x-h) - k

Convert to vertex form.

• y=-(x-5)² + 21
• y=-(x+5)² + 21
• y=-(x+10)² + 21
• y=-(x-10)² + 21

Convert the following quadratic expression to vertex form...

x² - 2x + 5

• (x - 1)² + 4

• (x - 1)² - 4

• (x - 1)² + 3

• (x - 1)² + 7

Convert the following quadratic expression to vertex form...

x² - 2x - 3

• (x - 1)² + 4

• (x - 1)² - 4

• (x - 1)² - 2

• (x - 1)² + 5

Convert the following quadratic expression to vertex form...

x² - 12x + 25

• (x - 6)² + 13

• (x - 6)² - 11

• (x - 6)² + 11

• (x + 6)² - 13

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• line of dashes

• (7, 3)

• (7, -3)

• (-7, 3)

• (-7, -3)