So for example, what if we had a solution that went through this point right over here? Well, at that point right over here, the slope field tells us that our slope is zero, so our y value's not going to change. And as long as our y value doesn't change, our y value's going to stay at four, so our slope is going to stay zero. So we actually already found, this is actually a solution to the differential equation. It's y is equal to four is a solution to this differential equation. So y is equal to four. y is equal to four.