Answer:
Parallel lines have the same slope. The two lines have slopes of -1/2 and -2, and since -1/2 [tex]\neq[/tex] -2, they are not parallel. Perpendicular lines must have slopes that multiply together to equal -1. As -1/2 * -2 is 1, not -1, they are not perpendicular. Thus, the lines are neither parallel nor perpendicular, so the answer is neither.
(we have all the information to find if it is parallel or perpendicular, so it is not "not enough information". the lines just simply don't match the criteria.)
