Solve the Following LP Problem Graphically Using Level Curves

Short Answer

Solve the following LP problem graphically using level curves.
$$\begin{array} { l l } \text { MAX: } & 5 X _ { 1 } + 6 X _ { 2 } \\\text { Subject to: } & 3 X _ { 1 } + 8 X _ { 2 } \leq 48 \\& 12 X _ { 1 } + 11 X _ { 2 } \leq 132 \\& 2 X _ { 1 } + 3 X _ { 2 } \leq 24 \\& X _ { 1 } , X _ { 2 } \geq 0\end{array}$$