Question

${x}^{2} + {y}^{2} = 9$
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Answer 1

Answer:

The given equation:

${x}^{2} + {y}^{2} = 9$

Represents a circle of centre (0,0) and radius of units.

Answer 2

Answer:

$x=3-y\\y=3-x$

Step-by-step explanation:

$x^{2} +y^{2} =9$

$x^{2} =9-y^{2}$

$x=\sqrt{9-y^{2} }$

$x=3-y$

$y=3-x$

I HOPE YOU UNDERSTOOD THE QUESTION