Answer:
Parallel: -1/4 Perpendicular: 4
Explanation:
1. Parallel lines have the same slope. The line has a slope of -1/4 because it is following the formula y = mx+b where m is the slope. Thus, the slope would remain -1/4.
2. Perpendicular lines have the opposite reciprocal for the slope. To reciprocate flip the fraction first (-1/4 ---> -4). Then, add/get rid of the negative sign if it was there before. (-4 ----> 4). Thus, the slope would be 4.
Hope this helped :)