How to Find Local Extrema by Checking Critical Points of a Function | Calculus | Study.com

Professor V 👩‍🏫 on Instagram: "Ever wonder what those 3D graphs really mean when we talk about local minima or saddle points? 🤔 Here’s a sneak peek — you’ll see the surface, then watch me find those points using calculus. In the full YouTube video, I work through four clean examples step-by-step using the D-test — so you can finally feel confident finding critical points, local extrema, and saddle points yourself. 🎓 Watch the full lesson on my channel → Math with Professor V xoxo Professor V

Finding relative extrema (first derivative test)