Quadratic Equation Basics

Use the graph to determine the solutions.

• -1 and -3

• 1 and -3

• 1 and 3

• -1 and 3

How many zeros does this quadratic have?

• 1

• 2

• 3

• 0

The solutions of a quadratic equation are known as the _____.

• Vertices

• Roots

• Squares

• Formulas

Standard form of a quadratic equation

• y=x²

• y=ax²+bx+c

• y=mx+b

• y=x

The solutions of a quadratic equation are known as the _____.

• Vertices

• Roots

• Squares

• Formulas

Label these parts of the Quadratic Formula

a

b

Discriminant

Plus or Minus

Select the solutions to the equation

4x² + 11x + 7 = 0

• x = - 1.75

• x = 6

• x = - 1

• x = 1

What are the solutions to the quadratic equation?

• x = -4

• x = 1

• x = -1

• x = 2

• x = 4

What are the solutions for this quadratic equation?

• -4 and 0

• 4 and 0

• -2 and 4

• -2 and -4

The quadratic function y = -2x² + 4x + 6 is pictured. What are the solutions to the equation 7.5 = -2x² + 4x + 6?

• x = 0.5

• x = 1.5

• x = 1

• x = 8

• x = 6