Graphing a Quadratic Equation

What are the solutions?

• 0 and 8

• -2 and -4

• 3 and -1

• 2 and 4

How many zeros does this parabola have?

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

What is the vertex?

Write your answer with parenthesis, a comma and a space like this: (h, k)

The equation of this line would be...

• y = x²

• y = x² + 2

• y = (x + 2)²

• y = -x² - 2

The equation for the axis of symmetry for this parabola is...

Write your answer like this: x = #

What is another word that describes the zeroes of a quadratic function?

• y-intercepts

• vertex

• x-intercepts

• maximum

Use the related graph of each equation to determine its solutions.

• x = 0

• x = -1, 1

• x = -1

• no real solution

• -4.5

• -2.5

• -3.5

• -5