## Question

###### Use a computer to graph the function using various domains and viewpoints. Comment on the limiting behavior of the function. What happens as both $x$ and $y$ become large? What happens as $(x, y)$ approaches the origin?$$f(x, y)=rac{x+y}{x^{2}+y^{2}}$$

Use a computer to graph the function using various domains and viewpoints. Comment on the limiting behavior of the function. What happens as both $x$ and $y$ become large? What happens as $(x, y)$ approaches the origin? $$f(x, y)=\frac{x+y}{x^{2}+y^{2}}$$

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