Answer:
Line 13 = 0
Line 14 = 1/8
Explanation:
Slope is determined by rise over run (y/x). Since Line 13 has a rise of 0 and a run of 9, 0/9 = 0. Therefore, the slope is 0.
Line 14 has a rise of 2 and a run of 16 between the two points. Therefore the slope is 2/16 which simplifies to 1/8.