Algebra Review Ch 9 Test

Solve by steps:

k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

Tags

CCSS.8.EE.A.2

Solve by steps:

3 + 9r² = 12

• r = 0

• no solution

• r = 3, r = -3

• r = 1, r = -1

Tags

CCSS.8.EE.A.2

Solve

a² + 2a - 24 = 0

• {-6, 4}

• {6, -4}

• {12, -2}

• {8, -3}

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:  4x² + 11x - 3 = 0

• x = -3/4 and x = -1
• x = 4 and x = 3
• x = 1/4 and x = -3
• x = -1/4 and x = 3

Tags

CCSS.HSA-REI.B.4B

Use the Zero Product Property to solve the equation (7x+2)(5x-4)=0

• {2,-4}

• {2/7 , 4/5}

• {-2/7 , 4/5}

• {-2, 4}

Tags

CCSS.HSA-REI.B.4B

What is the vertex of y=x²+4x+3?

• (2,1)
• (-2,1)
• (0,0)
• (-2,-1)

Solve by factoring: x²-13x+47=7

• {1,2}

• {1,-5}

• {-8,-5}

• {8,5}

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: 3x²-10=x

• {5/2}

• {4/7,8}

• {-5/3,2}

• {5/3,-7}

Tags

CCSS.HSA-REI.B.4B

Solve by steps:

2x²-4=28

• {4,-4}

• {65/4,-65/4}

• {7/2}

• {7/2,-7/2}

Tags

CCSS.8.EE.A.2

Will the following function open up or down: -2x²-3x+4

• Up
• Down

Tags

CCSS.HSF-IF.C.7A