Find a cubic function f(x) = ax3 + bx2 + cx + d
that has a local maximum value of 4 at
x = −4
and a local minimum value of 0 at
x = 2.

Bbghjkskxnxnixidnd dbshusjsjsns sndnbs

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.