Solutions to Quadratic Equations Graphing

What is the axis of symmetry?

• the slope of the graph

• the x-axis

• the dividing line for a parabola

• a way to spin my pencil

Determine the vertex of y = x² + 8x - 10

• (4, 38)

• (- 4, - 26)

• ( - 8, 10)

• (2, 10)

Does the equation y = -3x² + 7x - 2 open up or down?

• up

• down

Use the graph to determine the solutions.

• -1 and -3

• 1 and -3

• 1 and 3

• -1 and 3

How many solutions does the function have?

• A

  No Real Solutions

• B

  One Real Solution

• C

  Two Real Solutions

• D

  Four Real Solutions

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

• Vertices

• Roots

• Squares

• Formulas

• A
  Roots
  x = 2
  x = -4
• B
  Roots
  x = 2
  x = 4
• C
  Roots
  x = -2
  x = -4
• D
  Roots
  x = 0
  x = 4

• A
  1 Real Solution
• B
  2 Real Solutions
• C
  No Real Solutions
• D
  Half a Solution

• A
  Roots are -1 and -3
• B
  Roots are 0 and 3
• C
  Roots are 1 and 4
• D
  Roots are -1 and 3

What is a solution of the function ?

• A

  -1

• B

  0

• C

  2

• D

  -9