So far as I solved I not sure are
2 A Or C not sure
the rest is not yet solved I have to work on them to make sure
#7 Solve f'(a) = 1 for a. Then b = f(a) = .....
#8 I don't like any of the answers or the question for that matter. But they probably want the answer corresponding to .....
#9 Evaluate .
#10 Option (d) is wrong because it fails y(0) = 0. So test two of (a), (b) or (c). Either one of the two is correct, or both are wrong. Either way, you find the correct option.