Question

What is the equation
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Answer 1

The answer is the letter B.

Answer 2

B.
`(x+1)^2+(y-2)^2=9`

Explanation:

The given circle is centered at
`(-1,2)` and has radius 3 units.

The equation is given by

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

where (a,b) is the center and r is the radius.

We substitute the values to obtain;

`(x--1)^2+(y-2)^2=3^2`

`(x+1)^2+(y-2)^2=9`