Quadratic Functions Using Square Roots

Solve using the quadratic formula

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Tags

CCSS.HSA-REI.B.4B

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

• Vertices

• Roots

• Squares

• Formulas

Solve the equation using any method:

4x²+2x - 6 = 0

• x = 1 & -1.5

• x = -1 & 1.5

• x = (-2 ±√92)/8

• x = (-2 ± √100)/8

Tags

CCSS.HSA-REI.B.4B

Solve:
x² - 49 = 0

• x = -7, x = 7

• x = -7

• x = 7

• x = -7, x = 1

Tags

CCSS.HSA-REI.B.4B

-x² +16 = 0

• No Real Solutions

• 4

• -4

• 4, -4

Tags

CCSS.HSA-REI.B.4B

2x²= 30

• x= √5

• x= √30

• x= √15

• x= ±5

Tags

CCSS.8.EE.A.2

(x + 3)² = 36

• x = √36

• x = √39

• x = -9 and x = 3

• x = 9 and x = -3

Tags

CCSS.HSA-REI.B.4B

x² = 25

• x = -5

• x = 5i, x = -5i

• x = 5

• x = 5, x = -5

Tags

CCSS.8.EE.A.2

Solve using square roots.
4m² - 100 = 0

• m=25, -25

• m=96

• m=5, -5

• m=-96

Tags

CCSS.8.EE.A.2

x² = -25

• x = -5

• x = 5i, x = -5i

• x = 5

• x = 5, x = -5

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7