Question

What is the standard form of the equation of a circle with a center at (0, 0) and a radius of 5?

Answer 1

First, the standard form for a circle with radius r and center (`h,k)` is...

`(x-h)^2+(y-k)^2=r^2`

Explanation:

Substituting `(0,0) " for " (h,k)` and `5=r` ...

`(x)^2+(y)^2=5^2=25`

hope that helped