SOLUTION: Let n be the number of oil refineries at t years since 2004. A reasonable model of the number of oil refineries is n=-3.51t+171.04. a. What is the​ slope? What does it mean in t

Algebra ->  Graphs -> SOLUTION: Let n be the number of oil refineries at t years since 2004. A reasonable model of the number of oil refineries is n=-3.51t+171.04. a. What is the​ slope? What does it mean in t      Log On


   

Question 1137014: Let n be the number of oil refineries at t years since 2004. A reasonable model of the number of oil refineries is n=-3.51t+171.04.
a. What is the​ slope? What does it mean in this​ situation?
b. What is the​ n-intercept? What does it mean in this​ situation?
c. Predict the number of refineries in 2019.
Answer by AfronPie(1) About Me  (Show Source):
You can put this solution on YOUR website!
a) the slope is -3.51. It means that every year the number of oil refineries goes down by about 3 and a half.
b) n-intercept ?
c)In 2019, which is 15 years ahead of 2004 (t=15), the predicted number of refineries is about 118.39.