Graphing Inequalities - Lesson 13-4
Today, we learned about graphing inequalities. We started by reviewing the following hints for doing this:
Then we did the following example:
For the example, we took the following steps:
- Put the equation in y = mx + b form: y > -x + 10.
- Graphed the line y = -x + 10...we did this as a dotted line since the inequality is just >, not > or =.
- Plugged the point (0, 0) into the equation to see if it resulted in a true statement...it didn't (0 is not > 10), so we shaded on the side of the line opposite to (0, 0).
That's it! you should be able to do problems that use these techniques now!