a MATLAB script that: • Prompts the user for - a lower-bound forthe plot interval and stores it in a variable named Lbound - anupper-bound for the plot interval and stores it in a variable namedUbound, and - the number of points at which a function is to beevaluated to generate a plot of the function over the specifiedrange and stores it in a variable named npoints. • Generates a plotof f(x) = x3 - 3x2 – x + 3 over the specified range using thespecified number of points. The plot title should be “f(x) = x^3 -3x^2 – x + 3â€, the axis labeled “xâ€, and the y-axis labeled f(x).NOTE: There should not be any display of information to the CW.Suggestion: You should be able see the interesting portion of thisfunction if you plot on -1.5 ≤ x ≤ 3.5.