# An airplane covered 21 miles of its route while decreasing its altitude by 46,000 feet. How do you find the slope of the airplane's line of descent?

##### 1 Answer

#### Explanation:

Think of the problem as a right triangle.

The airplane has traveled

The airplane has also dropped

We now have the total change in

The airplane's line of descent is the hypotenuse of the two lines we determined.

To calculate the slope of this line, simply use the idea of

Slope of hypotenuse = slope of airplane's line of descent =

=