I wasn't in class this day and I am still clueless after the textbook examples. How do you attack this? Any implicit involved?
Hint (definition): an antiderivative, sometimes also called primitive function (although they formally are different, but this really doesn't matter now) of a function is a function .
Huge Hint: the primitive function of , for ANY real number is , where is an arbitrary constant.
Pd. Don't you dare miss classes anymore: at this level it can be as bad as getting lost in the desert.
Yes, that may happen when one misses classes. Grab any decent book of calculus and try to read there this material which, on the other hand, is not hard and it is pretty standard.
You can try also to google "indefinite integral", "antiderivative", "primitive function". I bet there are well over 2 million entries for these ones.