Dealership sold 4 cars (0 = 4) and the next week, the dealership sold 9 cars (1 = 9).
Assume the number of cars is growing linearly.
a. Complete the recursive formula for the number of cars sold, , n weeks later:
= −1 + _____________________
b. If this trend continues, how many cars will be sold 7 weeks later (n = 7)?