Question

the graph of a skydivers height in the air after jumping from a plane and opening his parachute is shown below. use the graph below to determine the skydivers rate of descent. skydivers descent -20 ft/sec -50 ft/sec -10 ft/sec -30 ft/sec

Explanation:

Step1: Select two points on the line

Let's take the points (0, 2500) and (100, 500).

Step2: Use slope - formula

The slope formula is $m=\frac{y_2 - y_1}{x_2 - x_1}$. Here, $x_1 = 0,y_1=2500,x_2 = 100,y_2 = 500$. So $m=\frac{500 - 2500}{100-0}=\frac{- 2000}{100}=-20$.

Answer:

-20 ft/sec