The equations of four lines are given. Identify which lines are parallel. Line 1: y=13(x+6)y=13x+6
Line 2: y−6=3xy-6=3x
Line 3: y=−3(x−4)y=-3x-4
Line 4: 3y+18=x3y+18=x

All four lines are parallel.

Lines 1 and 4 are parallel.

Lines 1 and 3 are parallel.

Lines 2 and 3 are parallel.