Question

The pressure on a scuba diver at a depth of d feet is given by the function f(d)=64d+2112, where f(d) represents the total pressure in pounds per square foot. If the pressure gauge reading is 4352 pounds per square foot, at what depth is the diver?

Answer 1

f(d)=64d+2112

at depth d, f(d) = 4352

therefore, 4352=64d+2112
64d = 2240
d=35 ft