605 pounds in 3.5 hours = 605/3.5 = 172.86 lbs per hour
2100 pounds in 10 hours = 2100/10 = 210 lbs per hour
1st point (3.5,605)
2nd point (10, 2100)
slope = (2100 - 605)/10-3.5 = 1495/6.5 = 230
y = mx + b
y = 230x + b
605 = 230(3.5) + b
605 = 805 + b
605 = 805 - 200
y = 230x - 200
y = 230(12) - 200
y = 2,760 - 200
y = 2,560
2,560 lbs of strawberries in 12 hours.