Equations parallel to each other have the same slope so that rules out the fourth answer. Perpendicular equations have opposite and reciprocal slopes, which in this case would be , which rules out all of the others except for the third option.
Ok. Because there are 6 people and 8 pieces. So 6 people have 1 slice each. The other 2 pieces. The other 2 pieces have to divide both pieces into 3 hat way everyone has a pieces Every one will have 1 1/3 pieces.
