-5-4-3-2-1 0 1 2 3 4 5
-5-4-3-2-1 0 1 2 3 4 5
++++
-10-9-8
4. In Knoxville, the temperature rises 4° from 4 P.M. to 5 P.M. Then the
temperature drops 7° from 5 P.M. to 6 P.M. In Cleveland, the temperature
drops 6° from 4 P.M. to 5 P.M. Then the temperature drops 2°
from 5 P.M. to 6 P.M.