Solving Quadratic Equations by Graphing Real World

What are the solution(s) to the quadratic equation?

• x = 0 or 2

• x = 1 or 3

• x = -3 or 1

• x = -1 or 3

Solve by graphing on Desmos: x² - 6x + 9 = 0

• x = 3

• x = -3

• x = -4, x = -2

• Not factorable

Solve by graphing on Desmos:

x² + 6x - 13 = 3

• x = -7.69 or 1.69

• x = -8 or 2

Solve by graphing on Desmos:

x² = 7x + 18

• -7 and -18

• 9 and 2

• 9 and -2

• 2 and 7

If the discriminant is positive, then the quadratic has:

• Real Solution

• Real Solutions

• Half a Solution

• Imaginary Solution

What are the green dots called?

• axis of symmetry

• vertex

• parabola

• roots or x-intercepts

What are the solutions?

• -2, 1

• 1, 2

• -1,2

• 0,-4

What is the degree of every Quadratic Equation?

• 1
• 2
• 3
• 4

4 and 2
-4 and -2
4 and -2
-4 and 2

• 4 and 2

• -4 and -2

• 4 and -2

• -4 and 2

How many zeros does this parabola have? 

• 3

• 2

• 0

• 1