For each of the given functions y = f (x) , a. find the slope of the tangent line to its inverse function f '1 at the indicated point P, and b. find the equation of the tangent line to the graph of f'1 at the indicated point. 274 . f (x) 4 P (2, 1 ) 1+x2 275 . f (x) Vx - 4, P (2, 8)