Two pieces of rope have lengths 72 ft and 96 ft. A wood cutter needs to cut the two pieces into smaller pieces all of equal lengths. What is the greatest possible length of each smaller piece?

I'm pretty sure it's b). i try drawing the functions out and b is the one that stands out or isnt a "line"

The answer would he -4,-2 because the points are just on the opposite side. since the x axis is +4 it's going to he -4 and since the y axis is -2 it stays there because whaen rotated it stays in the third quadrant