You definitely will.Hmm interesting. There is still a lot I have to learn
Sometimes you have to switch the y and x functions.
Let's say you are to solve this integral
In it's current state it is unsolvable in elementary terms. There's no nice way to solve it for an exact answer. Some teachers might even tell you that it is completely unsolvable. The only way to solve it, is using a series and that can get really messy and you'd have to add a lot of numbers to get some result.
If you switch the bounds to being a dydx equation, it is actually really easy even to find an exact answer.
What school year are you in Pi / when were you born?