Chapter 15

Graphing Basics

Graphs are a visual means of summarizing data. A good graph gives more information than a simple table of x and y values. Bad graphs can be very misleading. Scientists need to be able to transmit information in the form of good graphs.

The Problems You’ll Work On

In this chapter, you work with graphing basics in the following ways:

Identifying parts of a graph

Determining graph scales

Drawing and interpreting graphs

Predicting values

What to Watch Out For

Remember the following when working on graphing:

Very few graphs simply connect the data points.

The more neatly a graph is drawn, the easier it is to read.

The graph should occupy most, if not all, of the space available.

The scales should place the highest values near the top or right of the graph. The ...