yes they can be parallel because for a pair of lines to be parallel the slope must be the same no matter if the slope is positive or negative.
The slopes of two parallel lines will be the same.
Take any two lines and look at their slopes. -- If the slopes are equal, then the lines are parallel. -- If the product of the slopes is -1, then the lines are perpendicular.
They are not parallel.
Parallel lines have the same slope.
No, only lines that have the same slope can be parallel.
negative reciprocal slopes ---> the lines are perpendicular equal slopes ---> the lines are parallel
Is it possible for two lines with positive slopes to be perpendicular?
The same slope
equal
If two lines are parallel, they have the same slope.(And if they are perpendicular, the product of their slopes is minus one - unless one line is horizontal and the other vertical.)
Two parallel lines have equal slopes.