Plotting Signals:1. Sketch the following signals:a)xtifttiftft()=<-+-≤<-≤0424323b) y(t) = x(t-1) where x(t) is defined in part a)c)xnifnnifnfn=<-≤<022444d) y[n] = x[n+1] where x[n] is defined in part c)2. Write MATLAB code to plot the signals in Problem 1. Scale your time axis so that a sufficient amountof the signal is being plotted. Use subplot to give 4 plots per page; label your plots with ’Time (sec)’ onthe x-axis for the continuous time signals and ’n’ for discrete time signals.
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