Here we see a dialogue where students discuss solving inequalities as they learned in precalculus.

Check out this dialogue between two calculus students (based on a true story):
Devyn
Riley, remember when our precalculus instructor showed us how to solve inequalities?
Riley
Yep, but it seemed like it was just another method we were told to memorize!
Devyn
Right, but she said we would understand the method once we took calculus.
Riley
Sure, but didn’t she say that about everything we learned?

In precalculus, you learned to solve an inequality like What was the method that you used?