# Fitting quadratic and exponential functions to scatter plots

Determine if a quadratic or exponential model fits a data set better, then use the model to make a prediction.

### Problem

Below are 4 scatter plots showing the same data for the quantities f and x. Each plot uses a different unit for the vertical and horizontal axes.
Judging from these scatter plots, which type of function would be the best fit for f, left parenthesis, x, right parenthesis?
Please choose from one of the following options.