A sports-equipment researcher was interested in the relationship between the speed of a golf club (in feet per second)
and the distance a golf ball travels (in yards). Information was collected on several golfers and was used to obtain the
regression equation 9 = 2x - 106, where x represents the club speed and y is the predicted distance. What is the
predicted distance of a ball that is hit with a club speed of 168 ft/sec?
O 106 yards
137 yards
230 yards
336 yards