Chapter 16: Solving Quadratic Functions

Section 16.1 – Solving by Graphing and Factoring

zero of a function - a value of the input x that makes the output f(x) equal zero; the zeros of a function are the x-intercepts

Solve by Graphing

Solve by Factoring

roots of an equation - the values of the variable that make the equation true; also called solutions*A quadratic equation can have two roots that are equal. These are sometimes called a double root.