# How do I use a sign chart to solve #x^2+5x-9<0#?

##### 1 Answer

#### Explanation:

First, we want to find what the zeros of the function are.

Now, make a number line that includes these values, like the one below.

To make the sign chart, plug in values that fall within the specified interval - I tend to pick easy numbers for which I can do calculations in my head.

The original equation is an inequality. We need to find where

graph{x^2+5x-9 [-28.86, 28.87, -14.43, 14.43]}