Applications of the DiscriminantAlgebra 1

9.6

What is the quadratic formula?Review

What is the quadratic formula?Review

What is the discriminant?

What is the discriminant?The discriminant is the part of the

quadratic formula under the radical.

What is the discriminant?The discriminant can be used to figure

out how many solutions a quadratic equation has.

Example - video

positive

two solutions

If the discriminant is…

positive

two solutions

zero

one solution

If the discriminant is…

positive

two solutions

zero

one solution

negative

no solution

If the discriminant is…