Tony bought a tomato plant. When he bought it, he measured it to be 8 inches tall. Each week he measured it again and noticed that it was 2 inches taller every time. Create a graph to model the situation. Let x be the number of weeks and let y be the total height weeks of the plant .

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.