Problem: x(t)= 10e^-3tu() Plot the continuous-time signal over the range -1≤t≤5 Break up the time range into two ranges t1=[-1 0] and t2=[0:.1:5]. Then concatenate the results, i.e. t=[t1 t2]. My answer was: t= 0:.3:-1; x= exp(-3*t).*u(t) plot (t,x) axis (-1 0 -3) Can't plot the function because of issues. Please help.