# Quadratic formulas to solve quadratic equations

When using the quadratic formula to solve a quadratic equation ax2 + bx + c = 0, the discriminant is b2 - 4ac. This discriminant can be positive, zero, or negative. (When the discriminate is negative, then we have the square root of a negative number. This is called an imaginary number, sqrt(-1) = i. )

Explain what the value of the discriminant means to the graph of y = ax2 + bx + c. Hint: Chose values of a, b and c to create a particular discriminant. Then, graph the corresponding equation.

Â© BrainMass Inc. brainmass.com March 4, 2021, 7:05 pm ad1c9bdddfhttps://brainmass.com/math/basic-algebra/quadratic-formulas-to-solve-quadratic-equations-81057

#### Solution Summary

The solution provides very detailed explanations and charts for the problem.

$2.49