An airplane covered 13 miles of its route while decreasing its altitude by 16,000 feet.?

Question

Find the slope of the airplane's line of descent. Round to the nearest hundredth

Can someone help me i am no good at algebra pls

Answer 1

The first problem is the measurements are in different units.

13 mi x 5280 ft/mi = 68,640 ft.

We assume this is the horizontal distance. The vertical distance is -16,000 ft.

The slope is: "rise" over "run" (here the "rise" is negative):

-16,000
-----------
68,640

You can reduce this by dividing top and bottom by 160:
-100
------
429

If you want it as a decimal approximation:
-100/429 ≈ -0.233

To the nearest hundredth, the slope is:
-0.23

Answer 2

m = y1 - y2/(x1 - x2)
(16000 - 0) / ( 68640 - 0)
16000/68640 = .23

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