$Q_3[25]$ a$)$ Find $H(z)$ of $y[n]=5[n]-3x[n-1]+6x[n-3]$

b$)$ What are the filter Co eff. cients a type offilter c$)$ what is the length of the filter and the order gthe filter.

d$)$ plot $x[n]=[n]-7[n-1]+8[n-3]+2[n+1]$

e$)$ plot $y[n]$

A$)$ Realize the filter