Question

How do you graph `x^2+y^2=25`?

Answer 1

Below

Explanation:

The general formula of a circle is given by:
`(x-h)^2+(y-k)^2=r^2`
where `(h,k)` is the centre is r is the radius

Therefore, `x^2+y^2=25` can also be written as `(x-0)^2+(y-0)^2=5^2`

We can immediately see that the centre is `(0,0)` and the radius is 5

The graph is drawn below
graph{x^2+y^2=25 [-10, 10, -5, 5]}