plz help gives 50 points

Slope intercept form is given by y=mx+c
#1
[tex]\\ \rm\longmapsto x-3=y[/tex]
#2
[tex]\\ \rm\longmapsto y=1-3x[/tex]
[tex]\\ \rm\longmapsto y=-3x+1[/tex]
#3
[tex]\\ \rm\longmapsto -x+3=y[/tex]
#4
[tex]\\ \rm\longmapsto y=3x-1[/tex]