Solving Quadratics Equations by Graphing

How many real solutions does the quadratic have?

• No real solutions

• One real solution

• Two real solutions

How many real solutions does the quadratic have?

• No real solutions

• One real solution

• Two real solutions

Rewrite x² + 6x = 5 in standard form.

• x² + 6x + 5 = 0

• x² + 6x − 5 = 0

• x² = 6x + 5

• x² = 6x − 5

What is another word for solutions

• zeros

• roots

• x-intercepts

• y-intercepts

• vertex

• 3

• 8

• -9

• -3

Solve by graphing: 2x²+ 7x + 6 = 0

• x= 3/2 and x = 2

• x = -3/2 and x = -2

• x = 6 and x = 7

• x = -6 and x = -7

What  are the solutions of this graph?

• -2 and 3

• -1/2 and -6

• -2 and -6

• 3 and -6

Which is a zero of the graph?

• 0

• -1

• 1.5

• -3

What are the zeros of the quadratic function?
y = x² - 2x - 15

• x = -2
  x = -15

• x = -3
  x = 5

• x = 3
  x = -5

• x = 1
  x = -16

Solve by graphing:

x² + 44 = -15x

• {-8, 2}

• {-7, 5}

• {-11, -4}

• {-11}