Solving Quadratic Equations with Square Roots

Solve for x:  $x^2=100$  

• 10

• 10, -10

• 50

• 50, -50

Tags

CCSS.8.EE.A.2

Solve for x:  $x^2-5=44$  

• 7

• 11.63, -11.63

• 7, -7

• 6.2, -6.2

Tags

CCSS.8.EE.A.2

Solve for x:  $5x^2=125$  

• 5, -5

• 2.23, -2.23

• 2.3

• 5

Tags

CCSS.8.EE.A.2

Solve for x:  $x^2+7=98$  

• 9.5

• 9.5, -9.5

• 10.2, -10.2

• 10.2

Tags

CCSS.8.EE.A.2

Solve for x:  $5x^2-49=4x^2$  

• 7, -7

• 7

• No real solution

• 1, -1

Tags

CCSS.HSA-REI.B.4B

Solve for x:  $2x^2+12=4$  

• 2, -2

• 2

• No real solution

• 4, -4

Tags

CCSS.8.EE.A.2

Solve the equation using square roots, then choose the graph that shows the same solution.  $x^2-9=0$  

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Solve the equation using square roots, then choose the graph that shows the same solution.  $4x^2-1=3$  

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Tags

CCSS.HSA.REI.B.4

If you solved an equation and got "no real solution" as your answer, which graph shows the same thing?

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Tags

CCSS.HSA.REI.B.4

CCSS.HSA.APR.B.3

CCSS.HSA.REI.C.7

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

If you were given the graph with these x-intercepts, where do you think the vertex of the parabola would have to be?

Tags

CCSS.HSF-IF.C.7A