By Vince Kotchian. Full-time GRE tutor since 2007, author of Barron's 6 GRE Practice Tests, three perfect 170 verbal scores on the real GRE, and moderator of r/GRE.
Dealing with functions in GRE math can be tough, but in my experience as a tutor, most people have trouble with them because they don't understand the basics of function notation. I.e., WTF does f(x) even mean.
In this video, I'll walk you through functions as if you didn't understand them at all. Hope it helps clarify this concept!
If you liked this video, check out my other free GRE resources.