It looks like the numbers work out quite neatly for us. Take the cube root of both sides, you get y minus 1 is equal to 3. Add 1 to both sides, you get y is equal to 4. So we really want to figure out the slope at the point 1, 1, 4, which is right over here. When x is 1, y is 4. So we want to figure out the slope of the tangent line right over there. So let's start doing some implicit differentiation.