The equations of four lines are given. Identify which lines are parallel. Line 1: y=12x−6
Line 2: x−2y=−1
Line 3: y=4x+6
Line 4: y+3=14(x−6)

Line 1: y=12x-6
Line 2: 2y=x+1. Y=x/2 +1/2
Line 3: y=4x+6
Line 4: Y=14x-84-3
Y=14x-87

None are parallel since none of them has 2 equal slopes

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8