Algebra Eoc Review

Using the graph solve the equation
-x²-2x+3=-5.

• {-3,-1}

• {-2,0}

• {-4,2}

• {-1,4}

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 is the vertex of this quadratic equation?  
y = 2(x - 2)²  +  5

• (-2,5)

• (2,5)

• (5,-2)

• (-5,-2)

Where is the axis of symmetry for this parabola?

• x = −1

• x = 0

• y = 3

• x = −3

Answer explanation

The axis of symmetry of a parabola is the vertical line that goes through the vertex of the parabola and divides the parabola symmetrically (both sides of the parabola are equidistant from the axis of symmetry).

Tags

CCSS.HSF-IF.C.7A

This is an example of:

(a)  

• Exponential Growth

• Linear Growth

• Linear Decay

• Exponential Decay

Tags

CCSS.HSF-IF.C.7E

Mathematical Equivalence

ON

Solve by taking square roots:

5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no real solution

Tags

CCSS.HSA-REI.B.4B

To solve by completing the square, what needs to be moved in this equation?
x² = 9 - 4x

• the -4x

• the 9

• the x²

Tags

CCSS.HSA-REI.B.4B

• 0

• 1

• 2

• infinitely many

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA.REI.C.7