I posted a question similar to this a minute ago, but I wanted to double check and make sure I'm doing it right. The question is find the shaded region of There is a picture, but I can't display it here. The bounds are 0 to 8 and the second equation is y = 0. So, you take the top curve (0) - the bottom curve . Leaving you with . From there you integrate which gives . This is where I get confused with definite integration. Do I put in 8 for the first x and then 0 for the second x? E.g. Or do I do two whole separate equations E.g. . Can someone explain? Thanks