A dog owner is told by the veterinarian that his dog, Max, is overweight and needs to lose 4 to 5 pounds in order to live a healthy life. The dog weighs 126 pounds when he is put on a special diet to aid in the weight loss. The vet predicts that the diet will allow Max to lose 4 ounces per week. Max is brought to the vet every 2 weeks for a weight check. Write an equation to represent the doctor's prediction, and the relationship between Max's weight in pounds, y, and the number of times Max's weight is checked, x, in periods of two weeks . Reduce all answers to the nearest tenth of a number.

Question

Falconmaster · Answer

Help @Ultrilliam @umm

SmokeyBrown · Answer

Ok, so the dog starts at 126 pounds and is predicted to lose 4 ounces every week; eight ounces every 2 weeks. A pound is 16 ounces, so the dog's weight is predicted to drop half a pound every 2 weeks.
Now, how would we write an equation to show the change in the dog's weight (y) with every 2 weeks (x) that passes, starting at 126? 
As a hint, you can think of 126 as the y-intercept, since it is our starting point.