this is from a review my teacher posted, can someone explain how to do the different parts of question 3

3 . f (X ) = x4_ -y 3 al Findzewes of function 6 ) evaluate hisints off (x ) as x-to + X - - ( ) lese first derivative dofind intervals of increasing decreasing + local maxtinin 2) use second deriv to discuss concarity a points of e ) Inf lection ise results from parts and do sketch graph offly)