Find the center-radius form of the equation of the circle.
-center $( 0,0 )$, radius 7
A) $x ^ { 2 } + y ^ { 2 } = \sqrt { 7 }$
B) $x ^ { 2 } + y ^ { 2 } = 7$
C) $x ^ { 2 } + y ^ { 2 } = 49$
D) $x ^ { 2 } + y ^ { 2 } = 14$

Question

Quizplus · Accepted Answer

The center-radius form of a circle with center $(h, k)$ and radius $r$ is $(x - h)^2 + (y - k)^2 = r^2$. For a circle centered at $(0,0)$ with radius 7, the equation is $x^2 + y^2 = 7^2$, which simplifies to $x^2 + y^2 = 49$.

Find the Center-Radius Form of the Equation of the Circle (0,0)( 0,0 )(0,0)

Find the Center-Radius Form of the Equation of the Circle $( 0,0 )$