Module 9 Review

4x²=64

• x=4 or x=-4
• x=4
• x=-4
• x=8 or x=-8

4(x-3)²=25

• x=1/2 or x=-1/2
• x=11/2 or x=1/2
• x=11/4 or x=1/2
• x=2 or x=11

x²-3x-28=0

• x=7 or x=4
• x=-7 or x=-4
• x=7 or x=-4
• x=-7 or x=-4

x²-x=6

• x=3 or x=-2
• x=-3 or x=-2
• x=3 or x=2
• x=-3 or x=2

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3

Solve     8x² - 6x + 1 = 0

• No Solution
• 0 or 1
• -0.5 or -0.25
• 0.25 or 0.5

Tags

CCSS.HSA-REI.B.4B

• ±81
• ±9
• ±3
• No real solution

Tags

CCSS.8.EE.A.2

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

Which of the following equations matches standard form of a quadratic?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

Tags

CCSS.HSA.SSE.B.3

If the discriminant is positive, then the quadratic has:

• 1 Real Solution
• 2 Real Solutions
• Half a Solution
• No Real Solution