### Home > PC3 > Chapter 3 > Lesson 3.2.4 > Problem3-141

3-141.

Graph the function $f(x)=(x-5)(x+4)$.

1. How is the graph related to the equation?

Compare the $x$-intercepts to the factors.

2. Use what you noticed in part (a) to write the equation of a quadratic function that has $x$‑intercepts of $(-6,0)$ and $(3,0)$.