Question

Mr.Mole left his burrow and started digging his way down at a constant rate

Answer 1

Mr. Mole is descending by 2.4 meters per minute

Explanation:

Let

x ----> the time in minutes

y ---> the distance in meters

we know that

In this problem the rate of change or slope is the same that the speed

The formula to calculate the slope between two points is equal to

`m=(y2-y1)/(x2-x1)`

take two points from the table

(5,-18) and (8,-25.2)

substitute the values in the formula

`m=(-25.2+18)/(8-5)`

`m=-2.4\ meters\ per\ minute` ---> is negative because is descending