SOLUTION: Write the standard form of the equation of the circle with raduis {{{sqrt(13)}}} and whose center is the orgin.

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: Write the standard form of the equation of the circle with raduis {{{sqrt(13)}}} and whose center is the orgin.      Log On


   

Question 597464: Write the standard form of the equation of the circle with raduis sqrt%2813%29 and whose center is the orgin.
Answer by math-vortex(648) About Me  (Show Source):
You can put this solution on YOUR website!
Hi, there--
.
The form for the equation for a circle in standard form is
.
%28x-h%29%5E2%2B%28y-k%29%5E2=r%5E2
.
where
(h,k)=(0,0) is the center of the circle and r = sqrt(13) is the radius.
.
Substitute your values for the center and radius of the circle into the equation.
%28x-0%29%5E2%2B%28y-0%29%5E2=%28sqrt%2813%29%29%5E2
.
Simplify.
x%5E2%2By%5E2=13
.
That's it. Feel free to email me via gmail if the explanation is unclear.
.
Ms.Figgy
matth.in.the.vortex@gmail.com