Stephano’s marble will get there first because the slope for Stephanos’s marble is y=2.25x, and when you do the math, (6=2.25x), the marble will reach 6 ft. at 2.7 seconds, and the x in y=3/2x for Pete’s marble is 6 ft. after 4 seconds, so Stephano’s marble will reach the 6 ft. mark first.
