True for all cases True for some cases
Not true for any
cases
Two lines that have
the same slope lie on
top of each other and
have all their points
in common
Two lines that have
different slopes will
not intersect
Two lines that have
different y-intercepts
intersect at exactly
one point
Two lines that have
the same slope and
different y-intercepts
will not intersect

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.