Question

A diver, when submerged in sea waters, suffers from increased pressure as he sinks. The pressure increase is described by a graph that passes through points (0, 2) and (20, 4), in atmosphere, as a function of depth, in meters. With this, determine the equation that expresses the pressure, in atmosphere, as a function of depth, in meters. And check what is the pressure suffered by the diver at 22 m depth?

Answer 1

Equation: y = 1/10x + 2

Pressure at 22 m: 4.2 atm

Explanation:

Step 1: Find equation

m = (4 - 2)/(20 - 0)

m = 2/20

m = 1/10

y = 1/10x + b

y = 1/10x + 2

Step 2: Find pressure at 22 meters

y = 1/10(22) + 2

y = 2.2 + 2

y = 4.2