So this is when x is equal to two. So they're talking about this area right over here. And so we need to figure out the percent of the total area under the curve that this blue area actually represents. So first let's find the total area under the density curve. And the density only has area, the density curve only has area from x equals one to x equals three. So it does amount to finding the area of this larger trapezoid. So let me highlight this trapezoid in red.