SOLUTION: The table shows the balance of a bank account on different days in the month. Find the rate of change during each time interval. During which time interval did the balance decrea

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Question 170326: The table shows the balance of a bank account on different days in the month. Find the rate of change during each time interval. During which time interval did the balance decrease at the greatest rate?

Day 1; 6; 16; 22; 30
balance($) 550; 285; 210; 210; 175
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
Day 1; 6; 16; 22; 30
balance($) 550; 285; 210; 210; 175
Days 1 to 6:
(550-285)/5=-$53 per day. THE GREATEST DAILY DECREASE.
Days 6 to 16:
(285-210)/10=-75/10=-$7.50 per day.
Days 16 to 22:
(210-210)/6=0/6=$0 per day.
Days 22 to 30:
(210-175)/8=-35/8=-$3.38 per day.