Alright, future engineers!
**Concavity** describes how a curve bends – up (like a cup) or down (like a frown).
Ex: `f''(x) > 0` for concave up.
Pro-Tip: Inflection points occur where concavity changes, i.e., `f''(x)=0` or undefined!
#Calculus #CurveSketching #STEM #StudyNotes

Alright, future engineers!

An **Inflection Point** is where a function changes concavity (from concave up to down, or vice versa). Ex: For `f(x)=x^3`, `x=0` is an inflection point. Pro-Tip: Look for where `f''(x)=0` & changes sign! It's a key feature of curves.

#Calculus #CurveSketching #STEM #StudyNotes