# How do you find the equation for the circle centered at (0,0) that passes through the point (1,-6)?

##### 1 Answer

Sep 29, 2016

#### Explanation:

The equation of a circle of center(a,b) and radius r is :

So,to think about the equation of a circle we should think about its center and radius .

The center is given (0,0).

The circle passes through the point (1,-6) so ,

the radius is the distance between (0,0) and (1,-6)

Equation of a circle is: