II: Plotting of Basic Function. Plot the given function using MATLAB. Always label your graph.

Basic:

Plot functions in one graph

Plot in on figure of Sinc function, where: $-2x2$

$1-y=sin\frac{x}{x}$

$2-y=sin\frac{1\mathrm{.}5x}{x}$

$3-y=sin\frac{2x}{x}$

$4-y=sin\frac{2\mathrm{.}5x}{x}$

With use $3$ symbols of specifying line styles and colors, and defined labels, legend for each plot, axis adjust.