Solving & Graphing Quadratics Review

What are the zeros of the function below?
(x - 6)(2x + 4) =0

• x = -6, x = -4
• x = 6, x = -2
• x = 4, x = 6, x =2
• cannot be determined

Tags

CCSS.HSF-IF.C.7C

Use the quadratic formula to solve: 2x² + 2x - 12 = 0

• -2, 3

• 2, 3

• 2, -3

• -2, -3

Tags

CCSS.HSA.REI.B.4

Solve by quadratic formula:

5x² - 10x - 40 = 0

• 4,-2

• (-5±√103)/12

• (-5±√337)/12

• 1±i√7

Tags

CCSS.HSA.REI.B.4

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:

6x² - x - 2 = 0

• x= -2/3, 1/2

• x= 2/3, -1/2

• x= -2/3, -1/2

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Solve by taking the square root:

k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Solve by taking the square root:

4x² = 100

• ±10

• ±25

• ±5

• 5

Tags

CCSS.HSA-REI.B.4B

Solve by taking square root:

5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solutionb

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Solve for h.
(h - 2)² = 9

• h = 5, -1
• h = 5, -5
• h = 5
• h = -1

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratics equation by completing the square:

x² + 4x + 1 = 0

• x = -2 ± √3

• x = -3 ± √2

• x = 2 ± √3

• x = 2 ± √2

Tags

CCSS.HSA.REI.B.4