Question

[2 points] Use the linear approximation of f(x, y) = 2x2y2 + 3xy + x at (1, 1) to approximate f(0.9,1.1).

I got: 5.9000
as the answer

8(x-1) + 7(y-1) + 6 = L(x)

4xy^(2) + 3y + 1 = f_x(x,y)
4yx^(2) + 3x = f_y(x,y)

does this answer seem correct?

Answer 1

You can get better help in the mathematics section.

Answer 2

yeah sorry was in a rush wehn i posted this :l