Feng found that the equation y=0.6x+4 models the relationship between y, the weight in pounds, of a puppy, and x its age in weeks. According to the equation, would be the expected weight of a puppy that is 8 weeks old?
We calculate for the expected weight of the puppy that is 8 weeks old by substituting 8 to the x of the equation given, y = 0.6x + 4 y = 0.6(8) + 4 = 8.8 Thus, the puppy would be 8.8 pounds.
