Astudent collects data on the amount of water w, in ounces, and the amount of soda s, in ounces, that a random sample of people drink each day. she finds that there is a negative linear relationship between the variables that is best modeled by the equation w=−1.4s+16.8 . for each additional ounce of soda that people drink each day, the model predicts, a decrease or increase? which is which of the follwoing 1.4, 15.4 or 16.8 in the number of ounces of water they drink each day