Quadratic Solving Multiple Choice Quadratic Formula

Factor:   3x²- 6x - 24

• (3x - 8)(x + 3)

• (3x + 4)(x - 6)

• 3(x - 2)(x + 4)

• 3(x + 2)(x - 4)

7x² - 26x - 8 = 0

• x = -1 and x = -7/8

• x = 4 and x = -2/7

• x = -4 and x = 2/7

• x = 4 and x = -7/2

Tags

CCSS.HSA-REI.B.4B

(x + 1) ² = 25

• ± 5

• 4  or  -6

• -4  or  6

• ± 4

Tags

CCSS.8.EE.A.2

Identify the 'a' value:
 y = 16x² - 8x - 24

• 16

• 8

• -8

• -24

Identify the 'b' value:
 y = 16x² - 8x - 24

• 16

• -8

• 8

• -24

Identify the 'c' value:
 y = 16x² - 8x - 24

• 16

• -8

• 24

• -24

What is the following called? b²- 4ac

• Axis of symmetry

• Quadratic Formula

• Vertex

• Discriminant

Tags

CCSS.HSA-REI.B.4B

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 the equation equal 0 by subtracting 3 on each side

• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

Solve    
2x² + 7x - 15 = 0

• -1.5 or 5

• No Solution

• -5 or 1.5

• 0.7 or 5

Tags

CCSS.HSA-REI.B.4B

Solve for x.  Round to the nearest hundredth if necessary.
3x² = 16x + 12

• x = -.67, 6

• x = -6, .67

• x = 3.33, 18

• x = -3.33, 18

Tags

CCSS.HSA-REI.B.4B