Quadratics Test Review

Solve using square roots:

x² - 18 = 0

• x = ±√18

• No solution

• x = ±9

• x = 18

Tags

CCSS.HSA-REI.B.4B

Solve by completing the square

x² + 2x = -9

• No solution

• x = -1 ± √-8

• x = 2 and x = -4

• x = 7 and x = -9

Tags

CCSS.HSA-REI.B.4B

Solve by factoring

x² - 3x - 54 = 0

• x = 9 and x = -6

• x = -9 and x = 6

• No solution

• Prime

Tags

CCSS.HSA-REI.B.4B

Solve using the quadratic formula:

2x² - 7x + 2 = 0

• 
• 
• 
• No solution

Tags

CCSS.HSA-REI.B.4B

SOLUTIONS are the ZEROS

• 0 and 4

• 2 and 4

• 0

• 2 and 4

When the discriminant is negative, how many real solutions does the quadratic equation have?

• 2

• 1

• 0

Tags

CCSS.HSA-REI.B.4B

When the discriminant is zero, how many real solutions does the quadratic equation have?

• 2

• 1

• 0

Tags

CCSS.HSA-REI.B.4B

When the discriminant is positive, how many real solutions does the quadratic equation have?

• 2

• 1

• 0

Tags

CCSS.HSA-REI.B.4B

What is the following called? b²- 4ac

• Axis of symmetry
• Quadratic Formula
• Vertex
• Discriminant

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