Solve a Quadratic Equation

• A
• B
• C
• D

The two solutions to y= 2x² - x - 3 are...

• 1 and 1.5

• -1 and 1.5

• -1 and -1.5

• 1 and -1.5

The equation y = x² + 3x - 18 is graphed. Based on this graph, what are the roots of the equation x² + 3x - 18 = 0?

Write your answer with a comma and a space like this: a, b

What are the solutions of this graph?

Write your answer with a comma and a space like this: a, b

What are the solutions?

• 0 and 8

• -2 and -4

• 3 and -1

• 2 and 4

How many zeros does this parabola have?

The equation y = -x² - 2x + 8 is graphed.  Based on this graph, what are the roots of the equation -x² - 2x + 8 = 0?

• 8 and 0

• 2 and -4

• 9 and -1

• 4 and -2

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

Find the roots.

Write your answer with a comma and a space like this: a, b

Find the solutions as an ordered pair.

• (3,0) (-4,0)

• (-3,0) (4,0)

• (-2,0) (4,0)