Almost any kind of quantitative data can be represented by a graph and most of these graphs represent functions. This is why functions and graphs are the objects analyzed by calculus. The next two problems illustrate data which can be represented by a graph. Match the following descriptions with their graphs below:
1. The graph of the distance traveled by a car as it enters a superhighway vs. time.
2. The graph of the velocity of a car as it drives along a city street vs. time.
3. The graph of the velocity of a car entering a superhighway vs. time.
4. The graph of the distance traveled by a car as it drives along a city street vs. time.

A	B	C	D