Quadratic Functions in Vertex & Intercept Forms

How can you tell the direction of the opening of the graph of a parabola by looking at the equation?

• The vertex tells you the direction of the opening
• The value of "a" tells you the direction of the opening.
• All parabolas open upward
• All parabolas open downward

Tags

CCSS.HSF-IF.C.7A

Does the graph of

2(x + 5) + 2

have a minimum or a maximum?

• Minimum

• Maximum

Tags

CCSS.HSF-IF.C.7A

Given the equation for this parabola:

y = -(x - 4)² - 3,

does this parabola have a maximum or minimum value?

• Maximum

• Minimum

Tags

CCSS.HSF-IF.C.7A

What is the green dashed line called?

• roots or x-intercepts

• parabola

• axis of symmetry

• vertex

Tags

CCSS.HSF-IF.C.7A

What is the vertex of the graph?

• (2,4)
• (-2,-4)
• (4,2)
• (-4,-2)

Tags

CCSS.HSF-IF.C.7A

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

• y = -2
• x = 3
• x = -3
• y = 2

Find the vertex.

f(x) = -3(x - 2)² - 4

• (-3,-4)

• (-2,-4)

• (2,-4)

• (2,4)

Find the vertex.

f(x) = -x² + 4

• (-1,4)

• (0,4)

• (0,-4)

• (-1,0)

Which equation has a vertex of (-3, 4)?

• y = 2(x + 3)² + 4

• y = (x + 3)² - 4

• y = (x - 3)² + 4

• y = 2(x - 3)² + 4

Which of the following is the correct equation for the given graph?

• f(x) = (x - 2)² - 1
• f(x) = (x + 2)² - 1
• f(x) = -(x + 2)² - 1
• f(x) = -(x - 2)² - 1

Tags

CCSS.HSF-IF.C.7A