The following table and graph show data from a random sample of people, relating their arm span, x, in centimeters, to their height, y, in centimeters. Part A

Bob drew a line he thought was close to many of the points and found the equation of the line. He used the points (165, 168) and (174, 178) on his line to find the equation. What is the equation of Bob’s line? If entering decimal values, round to the tenths place.
Part B

What does Bob’s equation predict for the height of a person with an arm span of 162 cm? If entering a decimal value, round to the tenths place.

His equation predicts a height of
_cm.