Week 7

This week in precalculus 11 we looked at discriminants. A discriminant is a part of the quadratic formula and can determine the number of solutions in a quadratic equation without solving the equation. This is the formula you use for discriminant:

To solve a discriminant you place the proper coefficient in its corresponding spot:

once you have put the coefficients in the proper place you solve as regular.

 

If the discriminant is postitive after solving is complete, this equation has 2 solutions and is an unequal, real root. If the discriminant is equal equal to zero after solving, the equation has one solution and is equal, real root. And if the discriminant is negative after solving, there are no solutions and is an unreal root.