This is our f of x axis, and this is our x axis. And we want the equation for the line tangent at x is equal to 1 half. So this is x is equal to 1 half. If you go up here, if you evaluate f of 1 half, you get 8 times 1 half to the third, which is 8 times 1 eighth, which is 1. And they actually gave us that already on this point. This is the point 1 half comma 1. And we need to find the equation for the tangent line.