3. A town's population has been growing linearly. In 2003, the population was 20,000. The population has been growing by 650 people each year. a. (3 points) Write an equation for the population, P, x years after 2003. P(x) = b. (2 points) Use the formula to find the population in 2012: 4. The current student population of Cincinnati is 3600. If the population decreases at a rate of 12.5% each year. a. (4 points) Write an exponential growth model for the future population P(x) where x is in years: P(x) = b. (2 points) What will the population be in 4 years? (Round to nearest student) 5. (5 points) Write an equation (any form) for the quadratic graphed below hp