The points $\bigg(0,\large\frac{8}{3}\bigg),$$(1,3)$ and $(82,30)$ :

Question

$\begin{array}{1 1} \text{from an obtuse angled triangle} \\ \text{from an acute angled triangle} \\\text{from a right triangle} \\ \text{lie on a straight line} \end{array}$