<p>“never going to use y = mx + b in my life”</p>
<p>You’re never going to use any other high school subject either, but high school and most four-year college degrees aren’t intended to be vocational training.
(And the point of math isn’t to memorize formulas anyway, and I wish teachers wouldn’t act like it is. y=mx+b is one of the more obvious ones and they still don’t really explain how it’s derived before they give it to you.)</p>
<p>(Real life sucks most of the time anyway. I’m not sure why everyone insists that it be shoved into everything more than it already is.)</p>