12. A curve is defined for \(x \geq 0\) by the equation
$$y = 6 x - 2 x ^ { \frac { 3 } { 2 } }$$
- Find \(\frac { \mathrm { d } y } { \mathrm {~d} x }\).
[0pt]
[2 marks] - The curve has one stationary point. Find the coordinates of the stationary point and determine whether it is a maximum or minimum point. Fully justify your answer.
[0pt]
[3 marks]
[0pt]
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