Question

Find the equations of the two circles which each satisfy the following conditions:

  1. the axis of \(x\) is a tangent to the circle,

  2. the centre of the circle lies on the line \(2y = x\),

  3. the point \((14,2)\) lies on the circle.

Prove that the line \(3y = 4x\) is a common tangent to these circles.