+218 The temperature changed throughout a certain day at a steady rate of
- 3 ° C every hour. If it was -8° C sometime between 2 pm and 2:20
pm, then the temperature was 9° C in the time interval
(Electric Pavlov tried to answer this, but he made the mistake of thinking it said "-9 degrees" meaning his solution was wrong.)
Please answer on the original thread: https://web2.0calc.com/questions/question-on-average-rate-of-change
+1622 Every 20 minutes, it goes down by 1 degree celsius.
That means from 1:40 to 2 it was -7 celsius. 1:20 to 1:40 -6, 1 to 1:20 was -5.
-2 was 12:00 to 12:20
1 was 11:00 to 11:20
4 was 10:00 to 10:20
7 was 9:00 to 9:20 => 8 was 8:40 to 9:00
you can generalize this, but:
-9*C was from 8:20 to 8:40 AM
