1. The problem statement, all variables and given/known data Find the relative extrema of each function, if they exist. List each extremum along with the x-value at which it occurs. Then sketch a graph of the function. 25. f(x)=1-x2/3 2. Relevant equations 3. The attempt at a solution f prime of (x)= -2/3x-1/3 -2/3x-1/3= 0 ??