Bernardo graphed the amount of money he earned each week mowing lawns. A line graph titled Lawn Mowing Money has weeks on the x-axis and money on the y-axis. Week 1 was 100 dollars, week 2 was 70 dollars, week 3 was 80 dollars, week 4 was 120 dollars, week 5 was 90 dollars, week 6 was 60 dollars. Between which weeks was the change in money earned the greatest? weeks 1 and 6 weeks 2 and 4 weeks 4 and 6 weeks 1 and 4