First Derivative Test for Maxima/Minima

Rarely Tested

At critical point $$c$$:

  • Local maximum if $$f'$$ changes from + to -
  • Local minimum if $$f'$$ changes from - to +
  • No extremum if no sign change
No related questions available for this formula yet.

Go back to topics

Join CAT 2026 course by 5-Time CAT 100%iler

Start your IIM journey with the right preparation and crack CAT 2026.

Enroll Now