Quadratic Roots by Graphing

To solve a quadratic by graphing is to find where the parabola crosses the x-axis. We call these the ___. Select all that apply.

• zeroes

• x-intercepts

• solutions

• roots

What are the solutions?

• 0 and 8

• -2 and -4

• 3 and -1

• 2 and 4

If the graph of a quadratic does not intercept the x-axis at any point, then it has:

• Real Solution

• Real Solutions

• Half a Solution

• No Real Solution

Tags

CCSS.HSF-IF.C.7A

Find the root(s) of this parabola?

• x = −6, x = 0

• x = −6

• x = −3

• x = −3, y = −9

How many roots does y=x² + 2x - 3 have?

• one

• two

• none

Find the root(s) of this parabola?

• x = −6, x = 0

• x = −6

• x = −3

• x = −3, y = −9

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Find the root(s) of this parabola?

• (−1, 3)

• x = −1, x = 3

• x = 1

• (1, −4)

Tags

CCSS.HSF-IF.C.7A

Find the root(s) of this parabola?

• x = 4, y = 0

• x = 4

• x = 0, x = 4

• x = −4, y = 0

Find the root(s) of this parabola?

• y = 0

• x = 1, x = 7

• x = 4

• x = 4, y = −9

Tags

CCSS.HSF-IF.C.7A

Find the root(s) of this parabola?

• x = 1, x = 5

• (1, 5)

• x = 3

• (3, −4)