State whether the growth (or decay) in each example is linear or exponential. Then answer the extra question for each part.
(a) The population of Mathville is increasing at a rate of 50 people per year. If the population today is 350, what will it be in five years?
Linear or Exponential? (Type LINEAR or EXP for your answer.) Population in five years: (Just enter the number; no units.)
(b) The population of Mathville is increasing at a rate of 4% per year. If the population today is 350, what will it be in five years?
Linear or Exponential? (Type LINEAR or EXP for your answer.) Population in five years: (Just enter the number; no units.)
(c) The value of your car is decreasing by 10% per year. If the car is worth $12,000 today, what will it be worth in three years?
Linear or Exponential? (Type LINEAR or EXP for your answer.) Value in three years: (Just enter the number; no units.)
(d) The price of gasoline is increasing by 2 cents per week (per gallon). If the price today is $1.61 per gallon, what will the price be in 12 weeks?
Linear or Exponential? (Type LINEAR or EXP for your answer.) Price in 12 weeks: (Just enter the number; no units.)