(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find the points of inflection of the graph of the function. (If an answer does not exist, enter DNE.)

2. Relevant equations

f(x)=1/3x^4 + 4x^3

3. The attempt at a solution

Found f'(x)= x^2(4/3x+12)

Also found critical numbers to x=0 and x=-9

I don't know how to get point of inflection

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Find Points of Inflection

**Physics Forums | Science Articles, Homework Help, Discussion**