Question

A scuba diver is 30 feet below the surface of the water 10 seconds after he entered the water and 100 feet below the surface after 40 seconds. What is the scuba divers rate of change?

Answer 1

`color(blue)("Scuba diver's rate of change " m = 130 / 30 = 4.33 " ft / sec"`

Explanation:

`"Rate of change " m= (y_2 - y_1) / (x_2 - x_1)`

`"Given : " (x_1,y_1) = 10, 30), (x_2,y_2) = (40, 100)`

`:. "Scuba diver's rate of change " m = (100-30) / (40-10) = 130 / 30 = 4.33 " ft / sec"`