Feb. 19: Key Features of a Quadratic Function (from a graph)

What is the domain of the function?

*Hint: Domain is the set of all x-values included in the function.

• x ≥ 3

• x ≤ 3

• All real numbers

• -1 ≤ x ≤ 5

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the range of the function?

*Hint: Range is all of the y-values included in the function.

• y ≤ 3

• y ≥ 3

• All real numbers

• -6 ≤ y ≤ 3

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the maximum of this function

• (0,0)
• (-4,0) 
• x = -2 
• (-2, 4)

Does the graph have a maximum or a minimum?

• maximum

• minimum

• maximum and minimum

• neither a maximum nor a minimum

Tags

CCSS.HSF-IF.C.7A

What is the equation for the axis of symmetry?

• y = 3

• x = 3

• x = 5

• x = 1

Tags

CCSS.HSF-IF.C.7A

What is the vertex?

• (-3, 0)

• (3, 0)

• (0, 18)

• (18, 0)

What is the significance of the ordered pair (0, -2) to the graph?

• It is the vertex

• It is an x-intercept

• It is the y-intercept

• It is the axis of symmetry

Tags

CCSS.HSF-IF.C.7A

Which statement about the graph is FALSE?

• The vertex is (-3, 18)

• The vertex is a maximum

• The y-intercept is y = 0

• The axis of symmetry is y = -3

Tags

CCSS.8.F.A.1

CCSS.8.F.B.5

What is the significance of the ordered pair (3, 0) to the graph?

• It is the maximum point

• It is the vertex

• It is the y-intercept

• It is an x-intercept

Tags

CCSS.HSF-IF.C.7A

Use the graph to determine the solutions.

• -1 and -3

• 1 and -3

• 1 and 3

• -1 and 3