The table shows the temperatures at different times over a 24-hour period. The new
12 PM temperature is 3 degrees warmer than at 12 PM on the previous day.
Time
12 PM
6 PM
12 AM
6 AM
12 PM
Change in
Temperature (°F)
-0.5
2.7
-5.6
-1.4
?
Paul and Dana both want to find the change from the 6 AM temperature to the new
12 PM temperature.
Paul says that you can use a number line and add the distances from 0 to the 6 AM
temperature and from 0 to the new 12 PM temperature. Dana says that you can
subtract -1.4 from the new 12 PM temperature.
to
PART A At 12PM the new temperature is -1.4
degrees.

Part B:
Who is correct and why?