Desmos Graphing Calculator

CalcReferenceCopy

Math·Geometry and Trigonometry·Circles

medium

A circle in the $xy$-plane has its center at $(9,6)$ and has a radius of length $4$. Which equation represents this circle?

A

$(x+9{)}^2+(y+6{)}^2=4$

B

$(x-9{)}^2+(y-6{)}^2=4$

C

$(x+9{)}^2+(y+6{)}^2=16$

D

$(x-9{)}^2+(y-6{)}^2=16$