Question 912785
My impulse is to say, we need to know what kind of graph and maybe what is the x at the maximum.  A possibility could be that f(3)>f(1) and then {{{(f(3)-f(1))/(3-1)>0}}}; and that f(5)<(f(3) and then {{{(f(5)-f(3))/(5-3)<0}}}.  This could mean that the first ratio is GREATER than the second ratio.


That can all be wrong if the graph or the actual function make for the discussion I gave to be wrong.