Question 8 Given f ( ac ) = = + 2 2 and f (x) = (2 5)(2+1) (20-2) 2 -, on what intervals is f(a) decreasing? None of These O The function is never decreasing. O (-00, - 1) O (5, 00 ) O (2, 5 ) O (-1, 5) O (-1, 2 ) O (-1, 2) U (2, 5) 0 (-00, - 1) U (5, 00 )Question 7 1 pts Given f(a) = ace and f (x) = e" (1 + a) for what value(s) of a does f(a) have a local minimum point? Note: A different question on this exam will ask for the local maximum(s). O - 1 Oo None of These O e There are no local minimum points