graph each equation
y=l x l-2
y=l x l+3
y=l x l-5
y=l x l-4
y=l x-3 l+1
y=l x+1 l-4
y=l x l-2
y=l x l+3
y=l x l-5
y=l x l-4
y=l x-3 l+1
y=l x+1 l-4