use ode45 and state space

A radioactive material decays at a rate that is proportional to the amount that remains. The differential equation that models this process is given by: dy/dt=kywherey=y0whent=t0 Here y0 represents the mass at time t0. a. Use MATLAB to solve the above differential equation numerically for t= to 10 seconds given the following: y=50,k=0.05. (Submit both the function file code and the script file code). b. Use MATLAB to plot the solution obtained in Part (a) for t=0 to 10 seconds. The exact (analytical) solution of the above differential equation is given by: y=50exp(0.05t) c. On the same graph obtained in part (b), use MATLAB to plot the analytical solution include a legend to label the curves