The pressure P of water on a diver’s body is a linear function of the diver’s depth, x. At the water’s surface, the pressure is 1 atmosphere. At a depth of 100 ft, the pressure is about 3.92 atmospheres.

(a) Find a linear function that relates P to x.

(b) Compute the pressure, to the nearest hundredth, at a depth of 10 fathoms (60 ft).