You can put this solution on YOUR website!
When in the format y = mx + b, as these equations are, one can look at the 'm' to know the slope. For these, the slopes are
. Slopes that are the SAME (identical) between equations name PARALLEL lines. However, since one of your slopes is positive and the other is negative, the slopes are NOT parallel.
***THEREFORE, THIS PAIR OF EQUATIONS DOES NOT REPRESENT PARALLEL LINES.