So the function I'm working with is:(adsbygoogle = window.adsbygoogle || []).push({});

f(x,y) = 1/sqrt(1-x^2-4y^2)

First, they want me to find the Domain and Range, which I found to be:

D: x^2 + 4y^2 < 1

R: (0,1]

Then they want me to sketch level curves and cross sections, then sketch f(x,y)

I'm having trouble with the sketching, I understand the concept of level curves, but when I make f(x,y) = k I'm not quite sure where to go from here... Does anyone have any graphing tips that I could use? Thanks!

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# Trouble Graphing Multivariable Functions!

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