4. A linear model describes the relationship between the weight in pounds, W, and the age in months, A, for Great Dane puppies: W = 16.25A - 9.5. The model was cre- ated by using weights for puppies aged 2 to 6 months. 12 S a. Use the model to estimate the weight of a puppy at 2 weeks (half a month), 1 year, and 5 years. 60 b. Does the model make sense for ages outside of 2 to 6 months? Why