Solving Quadratics

Identify the a, b and c values for this equation:
3x² - 8x + 15 = 0

• a=3, b=8, c=0
• a=3, b=-8, c=15
• a=3, b=8, c=15

What is name of the graph of a Quadratic Equation?

• Line

• Parabola

• U

True or false:
The solutions, roots, x-intercepts, and zeros of a quadratic equation are all the same thing.

• True
• False, because the solution and root are the same but the x-intercept and zero are different
• False, because the x-intercept and root are the same but the zero and solution are different
• False, they are all different

identifying the "zeros, roots, solutions" means finding the:

• y-intercepts

• x- intercepts

• vertex

How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

What are the solutions?

• -2, 1
• 1, 2
• -1,2
• 0,-4

What x-values are the solution to the equation (x-5)(x+2)=0

• x= 5 and x=-2

• x= -5 and x=2

• x=0

Solve the equation using the zero product property.
(x- 9)(x + 3) = 0

• x = 3 or x = 9
• x = 3 or x = -9
• x + -3 or x = 9
• x = -3 or x = -9

What are the solutions? (x+10)(x+9)=0

• x= -9, -10

• x= 9, 10

• x= -9, 10

• x= 9, -10

Factor x²-2x-8

• (x-2)(x+4)

• (x+2)(x-4)

• (x-2)(x-4)

• (x+2)(x+4)