Unit 2A: Quadratics Retest (Math 2)

A quadratic equation has a vertex form of y = -2(x - 1)² - 2. Which of the following is equivalent to this form?

• y = 2x² - 4x + 4

• y = -2x² + 4x - 4

• y = -2x² - 4x + 4

• y = 2x² + 4x - 4

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSF.IF.C.8

Change to factored form: y = x² + 7x + 12

• y= (x + 2)(x + 10)

• y = (x + 3)(x + 4)

• y = (x + 4)(x + 5)

• y = (x + 4)(x + 6)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSA.APR.B.3

Change to Factored Form:

y = 2x² + 13x + 15

• y = (2x + 1)(x + 15)

• y = (x + 3)(x + 5)

• y = (2x - 3)(x - 5)

• y = (2x + 3)(x + 5)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSA.APR.A.1

CCSS.HSA.APR.B.3

What is the constant of the sum?

(2x² + 5x - 7) + ( 3 - 4x² + 6x)

• 1

• 4

• -7

• -4

Classify this polynomial by its degree and number of terms:  x² + 6

• Linear polynomial
• Quadratic trinomial
• Quadratic binomial
• Cubic binomial

Convert the equation y= (x+8)²+7 into standard form.

• y= x²+16x+71
• y= x²+8x+71
• y= x²+16x+64
• y= x²+15x+7

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSA.APR.A.1

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5
• x = 20 and x = -9
• x = 4 and x = 5
• x = -4 and x = 5

Tags

CCSS.HSA-REI.B.4B

What are the factors of: x³ - 5x² + 5x - 25

• (x²-5)(x-5)
• (x²+5)(x-5)
• (x²+5)(x+5)
• (x²-1)(x-25)

Simplify $\sqrt{-99}$  

•  $11\iota\sqrt{3}$  

•  $3\sqrt{11}$  

•  $3\iota\sqrt{10}$  

•  $3\iota\sqrt{11}$  

Simplify $4\sqrt{50}$  

•  $20\sqrt{2}$  

•  $5\sqrt{2}$  

•  $4\sqrt{2}$  

•  $5\iota\sqrt{4}$