I want to know matlab code to solve this

I entered like x = [8.0, 17.5, 25.6, 31.1, 39.8, 44.0, 48.2, 53.9, 58.1, 62.0, 62.1]

also y following by the chart and then plot (x,y).

But mine doesn't look same as solution

1.5-6 A specimen of a methacrylate plastic is tested in tension at room temperature (see figure), producing the stress-strain data listed in the accompanying table (see next page). Plot the stress-strain curve and determine the proportional limit, modulus of elasticity (which is the slope of the initial part of the stress-strain curve), and the yield stress at 0.2% offset. Is the material ductile or brittle? STRESS-STRAIN DATA FOR PROB. 1.5-6 \begin{tabular}{|cc|} \hline Stress (MPa) & Straln \\ \hline 8.0 & 0.0032 \\ \hline 17.5 & 0.0073 \\ 25.6 & 0.0111 \\ \hline 31.1 & 0.0129 \\ 39.8 & 0.0163 \\ \hline 44.0 & 0.0184 \\ 48.2 & 0.0209 \\ 53.9 & 0.0260 \\ 58.1 & 0.0331 \\ 60.2 & 0.0384 \\ 62.0 & 0.0429 \\ \hline 62.1 & Fracture \\ \hline \end{tabular} Pot the stress-strain curve using the data listed in the he rusection ac chnown in the firu ure ing the data listed in the accompanying table of gure