Quadratic Roots and Discriminant

How many roots does this parabola have?

• 3

• 2

• 0

• 1

The discriminant is

• aX²  + bX  +  c

• b - 4ac

• b² - 4ac

• b² + 4ac

Solve the following quadratic equation.
x² - 10x + 25 = 0

• x=5, x=3

• x=5, x=5

• x=5, x=-5

• x=-5, x=-5

Solve the following quadratic equation
(x + 3)(x + 2) = 0

• x=1, x=4

• x=2, x=3

• x=-2, x=-3

• x=-1, x=-4

What is the discriminant of -2x² − x − 1 = 0

• 76

• -7

• 9

• none of these

What is the equation for this parabola in factored form?

• y=(x+2)(x-1)

• y=(x-2)(x+1)

• y=(x-2)(x-1)

• y=(x+2)(x+1)

Determine the discriminate and then indicare the number and type of solutions.

Determine the discriminate and then indicare the number and type of solutions.

Determine the discriminate and then indicare the number and type of solutions.

Solve the equation using the method of your choice: Factoring, Square Roots, or The Quadratic Formula