Question 160260: can someone please help me with this problem:
Two lines are parallel if:
a. m1 =(-m2)^-1
b. m1 = -m2
c. m1 = m2
d. None of the above Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! Two lines are parallel if the slopes of both lines are the same.
.
So, if m1 represents the slope of the first line
and m2 represents the slope of the second line
then
m1 should equal m2
.
Solution: c