Question

This is Geometry: Write an equation of a circle with center (-7,5) and radius=9

Answer 1

Do you know the formula for the equation of a circle?

Answer 2

its going to be 9^2=81=(x+7)sq +(y-5)sq i think

Answer 3

yes thats correct thank you :D

Answer 4

It's very easy:
\[Circle: r^2 = (x-h)^2 + (y-k)^2\]
Where r is the radius, h is the x-coordinate of the center,
and k is the y-coordinate of the center.