Key Features of Quadratic Functions

What is the range of the function graphed?

• (-∞, -3]

• (-∞, ∞)

• [-4, -1]

• [-3, ∞)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Which function best models the height and speed of throwing a ball in the air?

• Linear

• Quadratic

• Exponential

What is the equation of the axis of symmetry?

• y = 0

• x = 0

• x = 3

• x = -3

Which of the statements about the graph is FALSE?

• The vertex is a maximum

• There are two zeros at x = -3 and x = 3

• The y-intercept is (0, 18)

• The range is y ≥ 18

Tags

CCSS.HSF-IF.C.7A

What is the significance of the ordered pair (2, -4) 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

Determine the domain and range of the function

• Domain: All real numbers, Range: All real numbers

• Domain: x ≥ -4, Range: All real numbers

• Domain: All real numbers, Range: y ≥ -4

• Domain: -1 ≤ x ≤ 5, Range: y ≥ -4

Define X-intercept

• The highest or lowest point on the graph

• Where the parabola touches or intersects the x-axis

• Where the parabola touches or intersects the y-axis

• A line that divides the graph into two equal parts. i.e. cuts the graph in half

Tags

CCSS.HSF-IF.C.7A

Define Zero

• Where the parabola touches or intersects the x- axis, also called the x-intercept

• A line that divides the graph into two equal parts. i.e. cuts the graph in half

• The highest or lowest point on the graph

• Where the parabola touches or intersects the y-axis

Tags

CCSS.HSF-IF.C.7A

What are the zeros of the function? Choose all that apply.

• x = 0

• x = -3

• x = -6

• y = 18

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Which statement about the graph is FALSE?

• The vertex is also a zero of the function

• The y-intercept is (0, -2)

• The axis of symmetry is x = 2

• The range is y ≥ 0

Tags

CCSS.HSF-IF.C.7A