The tangent line has a slope of 44. So that is our tangent line. And what that's saying is if we go out one, if we go out one unit of time, which is one year, then we would have gone up 44 in tonnage. So if we use this line as approximation, after one year, this point would have 1,444 tons. But we're not trying to approximate a year out, we're trying to approximate a fourth of a year out. So we're trying to approximate, so this would be half a year out, this is one fourth of a year out. We're trying to approximate, we're trying to approximate that point right over there.