Find an equation and sketch the graph of the level of the function f(x, y) through the point (-1, 1) 2y-r x+y+1 Let S(2) = (7, y) # (0,0) (x, y) = (0,0) { f(x) : Determine whether f is a continuous function. Also, determine whether f has partial derivatives. Be careful, not only at (0,0) but at any point, including (0, 0). Find the functions and wherever they are defined. af dy

Q: f(x, y) = 22f дх2 2² f дуг = 2x — 8y 7x² +5y m --- 00

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A: NOTE: Refresh your page if you can't see any equations. . take derivative

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