Write a script that creates plots of the following functions, labeling axes and titling appropriately.use the matlab)

fn() = sin(n) over the interval [0, 1] for n = 1, 2, 4. Plot all on the same graph with thick lines of different colors. Use a legend.

(x) = (x + 2)(x 1)(x 4) over the interval x [4, 5]. Plot a red line along the x-axis and plot crosses at the roots of .