Question

A fish is 12 meters below the surface of the ocean. What is its elevation? Use a signed number to represent it.

Answer 1

Let's begin by listing out the information given to us:

The fish is 12 meters below the surface

The elevation of the surface or at surface level is 0 meter

This means that the elevation of the fish is given by the difference between the two elevations

`0-12=-12m`