THIS IS A QUESTION USING MATLAB PROGRAM

Exercise 2 Use the linspace command or the colon operator : to create a vector t with entries 1,1.05,1.1,,5, and define the function y=0.9t2+4et/15cos(2t) (make sure you use ";" to suppress the output for both t and y ). (a) Plot the function y in black and include a title with the expression for y. (b) Make the same plot as in part (a), but rather than displaying the graph as a curve, show the unconnected data points. To display the data points with small circles, use plot (t, y, ' o ' ). Now combine the two plots with the command plot (t,y,o' )to show the line through the data points as well as the distinct data points