A curve has equation \(y = \frac{12}{3 - 2x}\).

(i) Find \(\frac{dy}{dx}\).

A point moves along this curve. As the point passes through \(A\), the x-coordinate is increasing at a rate of 0.15 units per second and the y-coordinate is increasing at a rate of 0.4 units per second.

(ii) Find the possible x-coordinates of \(A\).