6.
\includegraphics[max width=\textwidth, alt={}]{e90356f2-7485-4a25-80c5-84e48ceddd62-2_472_753_248_456}
The diagram shows the curve with equation \(y = 3 x - x ^ { \frac { 3 } { 2 } } , x \geq 0\).
The curve meets the \(x\)-axis at the origin and at the point \(A\) and has a maximum at the point \(B\).
- Find the \(x\)-coordinate of \(A\).
- Find the coordinates of \(B\).