Question

One cold night the temperature was 0 degrees at 8 p.m. The temperature dropped at a constant rate from 8 p.m. to midnight. At midnight the temperature was −16.8. What was the temperature at 9 p.m.?

Answer 1

-4.2

Explanation:

Answer 2

The temperature at 9 pm was -4.2 degrees since from 8 pm to midnight the temperature fell constantly at a rate of -4.2 degrees per hour.