Unit Review: Quadratic Equations

Solve

x² + 2x - 20 = 4

• x = -6, x = 4

• x = 6, x = -4

• x = 12, x = -2

• x = 8, x = -3

Solve the equation by factoring:
x²-6x+8=0

• 2, 4
• -2, -4
• -2, 4
• 2, -4

(x+1)(x-2)=0

• -1, 2
• 1, 2
• 1, -2
• -1, -2

Solve by factoring.

• A

• B

• C

• D

Determine the solution(s) of the quadratic function.

• {-1,3}

• {-2,3}

• {-1, 4}

• No solution

What is another way to say "where a function crosses the x-axis"?

• x-intercept
• zero
• root
• all of these.

Determine the solution(s) of the quadratic function.

• {2, -2}

• {0, 4}

• {0}

• No solution

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -2
• x = 3
• x = -3
• y = 2

What is the "formula" for finding the axis of symmetry? 

• x = -4

• x = 4

• y = 4

• y = -4