Introduction to Quadratic Functions

Quadratic equations are second order polynomials, and have the form $f(x)=ax^2+bx+c$.

The zeros of a quadratic equation can be found by solving what is known as the quadratic formula.

The discriminant of a polynomial is a function of its coefficients that reveals information about the polynomial's roots.

Many equations with no odd-degree terms can be reduced to quadratics and solved with the same methods as quadratics.