Quentin buys a model car every year. The first time he bought a model car, in Year 0, it cost $19.40. He notices the price is getting more expensive, at a rate of 1.5% per year.
Answer: the graph increases from left to right, since the price goes up. If you were to actually graph this, the years would be on the bottom and the price would be on the left side, so since the price is going up, so is the graph. :)