Question

will medal and fan

what is the equation of the circles with center on the x-axis?

please

Answer 1

Equation of circle on a cartesian plane is \( (x-h)^2+(y-k)^2 =r^2\) where \( (h,k) \) is the coordinate of the centre and \( r\) is radius.

Answer 2

If the center is at x-axis the \(h\) coordinate will be \(0\). Simply plug \(h=0\) in the equation.