Question: Let f ( x , y ) be a function of x and y where x ( r , s ) = r ^ (

Let f(x,y) be a function of x and y where x(r,s)=r^(2)+s and y(r,s)=r-s.
Compute f_(r) at (r,s)=(1,2) if
f_(x)(1,2)=1,f_(y)(1,2)=4,f_(x)(3,-1)=2,f_(y)(3,-1)=5
Double check if the answer is 6 and if not explain why it isn't 6
Let f ( x , y ) be a function of x and y where x

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