Please help me with this matlab code. I have posted what i am suppose to do. could someone better explain this to me. im lost. thank you

1. (a) Modify the function ex.with.2eqs to solve the IVP (LA.4) for 0 st50 using the MATLAB routine ode45. Call the new function LAB04ex1. Let [t, Y] (note the upper case Y) be the output of ode45 and y and v the unknown functions Use the following commands to define the ODE: function dYdt- f(t,Y) y_Y (1); v.Y (2); Plot y(t) and v(t) in the same window (do not use subplot), and the phase plot showing v vs y in a separate window. Add a legend to the first plot. (Note: to display (t) y'(t), use 'v(t)-y'"(t)') Add a grid. Use the command ylim([-1.2,1.2]) to adjust the y-limits for both plots. Adjust the r-limits in the phase plot so as to reproduce the pictures in Figure LAg Include the M-file in your report