The graph shows the number of jam jars filled by two different machines over several minutes. A graph measuring number of jars and time. Two lines, labeled Machine A and Machine B, exit the origin to show that distance increases as time increases The equation y = 3x represents the number of jars, y, Machine A fills in x min. Which equation could represent the number of jars filled by Machine B?

y = 1.5x

y = 3x

y = 6x

y = 8x