Find if y = 11 dz Find the slope of the line tangent to the curve (x-4) + (y + 1) = 4 at the point (2,-3). 3+* Find the slope of the line tangent to the curve 3xy + cos y = at the 2 point (1, ). Find the slope of the line tangent to the curve a sin (3y) - cos y = - at the point (, 7).