1.4.-1.5 Test Review

Standard form of a quadratic equation

• y=x²
• y=ax²+bx+c
• y=mx+b
• y=x

What mathematical process did they use?

• Quadratic Formula
• Completing the Square
• Factoring
• Differentiation

What is this formula?

• Pythagorean Formula
• Quadratic Formula
• Distance Formula
• Correlation Formula

Solve using the quadratic formula:
4x² + 4x + 1 = 0

• x = -½
• x = -2
• x = 0

Solve
x² + 2x - 24 = 0

• x = -6, x = 4
• x = 6, x = -4
• x = 12, x = -2
• x = 8, x = -3

Solve
x² + 9x + 20 = 0

• x = -2, x = -10
• x = -3, x = -4
• x = -4, x = -5
• x = -4, x = -6

What are the zeros?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Solve for x.

x² = 36

• x = ± 6

• x = ± 18

• x = 6

• x = 18

Solve for x.

3x² = 48

• x = ± 4

• x = ± 12

• x = ± 16

• x = √16

Solve for x.

(x - 7)² + 4 = 40

• x = -1, -13

• x = 1, 7

• x = -1, -7

• x = 1, 13

• x = -7, -13