Question

The number line shows the elevation of the bottom of a harbor and the elevation of a fish swimming close to the surface what change in elevation is necessary for the fish to reach bottom?

Answer 1

Whatever number is larger than the number of the elevation of the bottom of the harbor

Explanation:

the elevation needs to be smaller than the decrese of the elevation like this.

Ex: The temputure elevated 28 degrees then decreased 30 degrees.

Boom :]

Answer 2

The change in elevation that is needed for the fish to get to the bottom is given as 9

How to solve for the change in elevation'

Change in elevation refers to the difference in height or vertical distance between two points or locations, typically measured from a reference point such as sea level or a specific baseline.

It indicates how much higher or lower one point is relative to another in terms of altitude or height above a defined reference level.

we have that the top is -1.5 meters

The bottom is -10.5

We would have -1.5 - (-10.5)

-1.5 + 10.5

= 9

The change in elevation that is needed for the fish to get to the bottom is given as 9