Algebra 1 Exam 9 Review MS

The quadratic equation can be used to solve quadratic equations that cannot be factored.

• True
• False

Tags

CCSS.HSA-REI.B.4B

For the equation y = 2x² -x -3

b² would equal which value?

• 2

• -1

• 1

• -3

Tags

CCSS.HSA-REI.B.4B

For the equation y = 2x² -x -3

4ac would equal which value?

• -12

• 8

• -24

• -1

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

For the equation y = 2x² -x -3

b² - 4ac would equal which value?

• 25

• -23

• -25

• 0

Tags

CCSS.HSA-REI.B.4B

What should you do first in solving this equation?

x² + 6x - 13 = 3

• Factor

• Write down: a = 1, b = 6, c = -13

• Subtract 3 from both sides.

• Add 3 to both sides.

Tags

CCSS.HSA-REI.B.4B

Solve using the quadratic formula.

2x² - 9x - 35 = 0

• x = $\frac{7}{2}$ , x = -6

• x = $-\frac{5}{2}$ , x =5

• x = $-\frac{3}{7}$ , x =6

• x = $-\frac{5}{2}$ , x = 7

Tags

CCSS.HSA-REI.B.4B

Solve using the quadratic formula

9x² = 4 + 7x

• x = 2 and x = 3

• x = -1 and x = .25

• x = 1 and x = -.45

• x = 1.16, and x = -.38

Tags

CCSS.HSA-REI.B.4B

Solve using the quadratic formula
 $35k^2-22k+7=4$  

• 4, -1

•  $\frac{8}{3}$  , $\frac{9}{5}$  

•  $\frac{1}{5}$  , $\frac{3}{7}$  

• 7, -2

Tags

CCSS.HSA-REI.B.4B

Solve using the quadratic formula
 $8x^2+21=-59x$  

• 4,  $-\frac{5}{3}$  

•  $\frac{2}{3}$  , 6

•  $\frac{4}{7}$  , 6

•  $-\frac{3}{8}$  , -7

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

x² - 5x - 2 = 4

• x = 6 or x = -1

• x = -6 or x = 1

• x = -6 or x = 5

• Cannot be factored

Tags

CCSS.HSA-REI.B.4B