Q for Quadratics

What is this?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the zero product property.
• This is scary.

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

• -4, 2
• -2, 4
• -16
• -4

Convert x²-6x+9 to factored form and identify the solution.

• (x-3)(x-3); x=3
• (x+3)(x+3); x=-3
• (x+4)(x+2); x=-4, -2
• Not factorable

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

• a = 4, b = -8, c = 3
• a = 4, b =-8, c =-3
• a = 4, b = 8, c = 3
• a = 4, b = 8, c = -3

Solve by factoring.
-4y² + 24y - 36 = 0

• -3
• 7/2
• 4
• 3

What is another word for zeros?

• y-intercepts
• roots
• vertex
• axis of symmetry

What is the vertex of the graph?

• (2, 4)
• (3, -1)
• (0, 8)
• (4, 2)

How does the parabola open? y = - x² + 4x - 1

• up
• down
• left
• right

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1