# Find the partial derivatives of the function

## Main Question or Discussion Point

The problem:
f(x,y)=-$$\frac{-7x-2y}{9x+7y}$$

find:

fx(x,y)
fy(x,y)

The attempt:

fx(x,y)=$$\frac{-7-2y}{9+7y}$$
fy(x,y)=$$\frac{-7x-2}{9x+7}$$

Questions:

I'm not exactly sure how to find the partail derivative with a fraction like this one.