Question

Write the equation for a circle that satisfies the given conditions.

Answer 1

Answer: B. $(x-11)^2+(y+2)^2=81$

Step-by-step explanation:

The standard form of a circle is described by the following equation:

$(x-a)^2+(y-b)^2=r^2$

Your center is $(11,-2)$ and your radius is $r=9$

Plug them into the equation and this is what you get:

$(x-11)^2+(y-(-2))^2=9^2$

Simplify and you get:

$(x-11)^2+(y+2)^2=81$

Your answer should be b.