Question

How do you determine the equation of the circle, given the following information: center (-3, 7) and radius 10?

Answer 1

`(x+3)^2+(y-7)^2=100`

Explanation:

Any circle centred at point `(x,y)` and having radius `r` has the standard form equation
`(x-a)^2+(y-b)^2=r^2`.

So in this particular case, the equation of the given circle will be

`(x+3)^2+(y-7)^2=100`