Answer
This is the circle formula ($x^2+y^2=r^2$) and describes a circle with radius $\sqrt5$, centered at $(0,0)$.
Work Step by Step
$r^2=5$
Since $r^2=x^2+y^2$, we get:
$x^2+y^2=5$
This is the circle formula ($x^2+y^2=r^2$) and describes a circle with radius $\sqrt5$, centered at $(0,0)$.
