Graphing a Quadratic Equation

What causes the graph of y = x² to open downward?

• multiply the x² by a fraction

• multiply the x² by a decimal

• multiply the x² by a negative number

• multiply the x² by a number greater than 1

Definition of vertex:

• The highest or lowest point on the graph

• The farthest point on the graph

• The closest point on the graph

• The point where the graph crosses the y-axis

What is the equation for this parabola in factored form?

• y=(x+2)(x-1)

• y=(x-2)(x+1)

• y=(x-2)(x-1)

• y=(x+2)(x+1)

Tags

CCSS.HSF-IF.C.7A

Identify the 'b' value: y = 16x² -8x -24

• 16

• -8

• 8

• -24

In factored form you can see the ______ of the graph easily.

• y-intercept

• vertex

• x-intercepts

Tags

CCSS.HSF-IF.C.7A

What are the x-intercepts of the parabola?
y = ⅔(x + 1)(x - 3)

• -1 and 3

• 1 and -3

• -1

• ⅔ and -1 and 3

Tags

CCSS.HSF-IF.C.7A

Identify a root

• (-1,9)

• (0,-8)

• (-4,0)

• (0,0)

Tags

CCSS.HSF-IF.C.7A

What is the equation for axis of symmetry?

• y=3

• x=3

• x=5

• x=1

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

Identify the 'a' value: y = 16x² -8x -24

• 16

• 8

• -8

• -24