Let f(x, y ) = * Use the Linear Approximation at an appropriate point (a, b) to estimate f(5.04, 1.91). (Use decimal notation. Give your answer to two decimal places.) 5.40 f(5.04, 1.91) ~ Incorrect AnswerFind the equation of the tangent plane to the graph of fx,y) =In(11x* = 8)?) at the point (1, 1). (Use symbolic notation and fractions where needed. Enter your answer using x-, y-, z-coordinates.) the equation: z=7.33x - 533y -0.9014 Incorrect Answer Find the equation of the plane in the figure, which is tangent to the graph f(x,y) = 0.2x* + 1.4y xy at (x,y) = (1,0.8). (Round any intermediate calculations, if needed, to no less than four decimal places, and round all coefficients in your final answer to two decimal places.) z= 075r-0.83 Incorrect