calculus
posted by akash .
Find the slope of the graph of the function at the given point. (If an answer is undefined, enter UNDEFINED.)
x^3 + y^3 = 14xy, (7, 7)

find dy/dx at (7.7)
3x^2 dx+3y^2 dy=14(ydx+xdy)
dy/dx(3y^214x)=14y3x^2
check that, I did the algebra in my head.
dy/dx= 108147 / 14798
check that, it was in my head also.