Solve Quadratic Equations by Graphing

Solve the quadratic equation by graphing the related function:

x² + 2x – 8 = 0

• { -8, -4, 2 }

• { -8 }

• { -4, 2 }

• { -2, 4 }

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

• y-intercepts
• vertex
• x-intercepts
• maximum

Tags

CCSS.HSF-IF.C.7D

How many solutions does the equation in standard form that is related to this function have?

• 3

• 2

• No real solutions

• 1

• Infinitely many solutions

What are the x- intercepts?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Tags

CCSS.HSF-IF.C.7A

The solutions of the quadratic equation 
x²+2x-15=0 are

• x = 3 or x = 5
• x = 5 or x = -3
• x = -5 or x = 3
• x = -3 or x = -5

Tags

CCSS.HSA-REI.B.4B

What is the greatest number of solutions that a Quadratic Equation can have?

• 0

• 1

• 2

• 3

• Infinitely many solutions

Solve

x² + 44 = -15x

• {-8, 2}

• {-7, 5}

• {-11, -4}

• {-11}

Tags

CCSS.HSA-REI.B.4B

Which are solution(s) to the equation graphed?

• 0

• -1

• 1.5

• -3

• 3

If the graph of a quadratic does not intercept the x-axis at any point, then it has:

• 1 Real Solution

• 2 Real Solutions

• Infinitely many solutions

• No Real Solution

Tags

CCSS.HSF-IF.C.7A

• x = -3

• x = -12

• x = -1

• x = 0

• x = 1

Tags

CCSS.HSA-REI.B.4B