We're trying to approximate, we're trying to approximate that point right over there. So it's going to be 1,400, this point right over here. And we could write down the equation of this line if we like. We could say this line, this line, so we'll call this the W approximation, because this isn't exactly our W function. This is equal to the slope of our line, 44 times time, plus our W intercept, we could say, or plus our initial condition, plus 1,400. So if you put time is equal to one fourth in there, you get it equal to 44, so let me say, let me write it this way. So our approximate W at time is equal to one fourth of a year is equal to 44 times one fourth, plus 1,400.