1. The problem states that the turning point (titik pusingan) of a function is at the coordinates $(3, q)$. 2. A turning point of a function $y=f(x)$ occurs where the derivative $f'(x)=0$. 3. To find $q$, we need the function $f(x)$ or more information about it, which is not provided here. 4. Without the function or its derivative, we cannot calculate $q$ explicitly. 5. If you provide the function, I can help find $q$ by substituting $x=3$ into $f(x)$ after confirming $f'(3)=0$.