A town has a population of 1000 people at time t equals 0.The population increases by 30 people a year. Write a formula for the population, upper p, of the town as a function of year t.
The given point (t, P) is (0, 1000), and the slope is given as ∆P/∆t = 30. Using the point-slope form of the equation for a line, the equation can be written as
