Solving Quadratic Equations by Graphing & Factoring Method

Using the graph solve the equation
-x²-2x+3=-5.

• {-3,-1}
• {-2,0}
• {-4,2}
• {-1,4}

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.11

CCSS.HSA.REI.D.10

Use the graph of y=-x²+6x-5 to solve the equation -x²+6x-5=0

• (1,5)
• {3,4}
• {1,5}
• {2,4}

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.11

CCSS.HSA.REI.D.10

Solve the equation by graphing.
 -x² + 12x - 36 = 0

• 6
• 3
• 4
• no solution

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.11

CCSS.HSA.REI.D.10

Solve the equation by graphing.
x² + 5x = -8

• -2, 4
• -1.18, -3.82
• no solution
• 1.18, 3.82

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.11

CCSS.HSA.REI.D.10

CCSS.HSA.CED.A.2

Which is NOT a quadratic equation?

• 2x²=14
• x²+3x-1
• -5x²+4=0
• -16t²-48x=0

What is another word that describes the zeros of a function?  

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

Tags

CCSS.HSF-IF.C.7D

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

• 1 Solution
• 2 Solutions
• All real numbers
• No Solution

Tags

CCSS.HSF-IF.C.7A

If each mark on the x-axis represents one second, when did the object reach the ground?

• 2.5 seconds
• 6 seconds
• 5.5 seconds
• 5 seconds

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.11

CCSS.HSA.CED.A.1

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5
• x = 20 and x = -9
• x = 4 and x = 5
• x = -4 and x = 5

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: x² + 3x - 18 = 0

• x = -3 and x = 6
• x = 3 and x = -6
• x = -9 and x = 2
• x = 9 and x = -2

Tags

CCSS.HSA-REI.B.4B