Find the center and radius of the circle $x ^ { 2 } + y ^ { 2 } = 49$ .
A)center: (0,0),radius: 11
B)center: (-1,1),radius: 11
C)center: (0,0),radius: 7
D)center: (-1,-1),radius: 7
E)center: (-7,-11),radius: 7

Question

Quizplus · Accepted Answer

The given equation is in the standard form $x^2 + y^2 = r^2$, where $r$ is the radius of the circle and the center is at the origin (0,0). The radius is the square root of 49, which is 7.

Find the Center and Radius of the Circle x2+y2=49x ^ { 2 } + y ^ { 2 } = 49x2+y2=49

Find the Center and Radius of the Circle $x ^ { 2 } + y ^ { 2 } = 49$