Exercise 4 Page 233

We are asked to solve the given quadratic equation. We will solve it by graphing. There are three steps to solving a quadratic equation by graphing.

1. Write the equation in standard form, $a{x}^2+bx+c=0.$
2. Graph the related function $f(x)=a{x}^2+bx+c.$
3. Find the $x\text{-}$intercepts, if any.

The solutions, or roots, of $a{x}^2+bx+c=0$ are the $x\text{-}$intercepts of the graph of $f(x)=a{x}^2+bx+c.$ Our equation is already written in standard form. Let's identify the function related to the equation.