I can graph $z = xy$ but what does the level set look like that is 3 = xy? I am having trouble picturing it.
[Math] If you graph $z = xy$ then what does the level set c = xy look like , say c = 3 as for example
graphing-functionsmultivariable-calculus
Best Answer
$xy=3$ will be a rectangular hyperbola, just like other curves of the form $xy=\text{constant}$.