That's going to be the slope of the secant line. So this is the secant line, so think about its slope. All the mean value theorem tells us is that at some point in this interval, the slope of the tangent line is going to be the same as the slope of the secant line. And we can see just visually, it looks like right over here the slope of the tangent line looks like the same as the slope of the secant line. It also looks like the case right over here, the slope of the tangent line is equal to the slope of the secant line. And it makes intuitive sense. At some point, your instantaneous slope is going to be the same as the average slope.