Are #y=3x+7# and #y=3x-8# parallel to each other?
Yes, they are parallel to each other. See full explanation of why below.
Two lines are parallel if they have the same slope.
You can find the slope of a line using the slope-intercept form of the equation which these two equations are already in.
The slope-intercept form of a linear equation is:
Both of these equations have the same slope of
Therefore these two lines are parallel.