So those are her data points. So once again, she documented the price of each movie title as a function of how long it's been, how many years it's been since it was featured in movie theaters. She is looking for a function that models her data. Since the trend of the data is decreasing and convex, and you see it here, it's decreasing, it's definitely decreasing, and convex, it's opening upwards. If you imagine a curve, it looks like it's opening upwards a little bit like that. So, decreasing and convex. She found a decreasing convex exponential model and a decreasing convex quadratic model.