Define transfer functions described below using the tf syntax in matlab, the use "bode" to plot the bode plots

clc;
close all
clear all

a.) atf = tf([1],[1 10]);
     bode(atf);

b.) btf = tf([1 0],[1 10]);
       bode(btf);

c.) ctf = tf([1 0],[1 1 1]);
       bode(ctf);

d.) dtf = tf([1 0 1],[1 1 1]);
        bode(dtf);
e.)   etf = tf([1 -1 1],[1 1 1])
        bode(etf)