Write an equation of the circle with the given center and radius.
-$( - 8,0 ) ; 7$
A) $x ^ { 2 } + ( y + 8 ) ^ { 2 } = 7$
B) $( x - 8 ) ^ { 2 } + y ^ { 2 } = 49$
C) $x ^ { 2 } + ( y - 8 ) ^ { 2 } = 7$
D) $( x + 8 ) ^ { 2 } + y ^ { 2 } = 49$

Question

Quizplus · Accepted Answer

The equation of a circle with center $(h, k)$ and radius $r$ is $(x - h)^2 + (y - k)^2 = r^2$. For a center at $(-8, 0)$ and radius $7$, the equation is $(x + 8)^2 + y^2 = 49$.

Write an Equation of the Circle with the Given Center (−8,0);7( - 8,0 ) ; 7(−8,0);7

Write an Equation of the Circle with the Given Center $( - 8,0 ) ; 7$