Please help me. I have an exam, please, quickly

1- Create a vector x in your script x= [-2:2] 2-Draw the function y=x.^2, by using plot command in MATLAB. 3-Use xlabel and ylabel MATLAB command to define the x and y-axis. 4-Give the title of the graph as ("simple plot") by using Title command in MATLAB. 5-Add another sine function in the same graph by using Subplot command MATLAB