Please help explain how to solve this problem. I'm not sure how to plot and how to find the x-axis numbers

8. An electron is confined to a one-dimensional box, L=8.0A. -The wavefunction describing the electron is given by (L2)10sin(Ln+x),n=1,2,3, a. Plot for the first 4 energy levels (neatly and with great elarity labeling both the x and y axis); n=1,2,3,4 n=4n=3 n=2 n=1 f(x)=(8A2)21sin8Anxforn=1,2,344