Question

On a number line, the surface of a river is marked at −220 feet and the top of a building is marked at +19 feet, where 0 represents sea level. What do −220 and +19 represent?

Answer 1

Any ideas?

Answer 2

Think about what "where 0 represents SEA LEVEL" means?

Answer 3

The level of the sea does not change, right?

Note, we measure heights above and below that level..

Answer 4

the answer is below sea leve;

Answer 5

ty

Answer 6

Yes, -220 represents 220 feet below sea level

and +19 represents 19 feet above sea level.

:-)