Python allows free creation of plots, unlike expensive, stagnant graphing calculators. Import NumPy and Matplotlib for basic ...

This example illustrates how to add data points to a graph. When a set of points visually appear to be in a pattern that is “almost” a straight line, it is possible use a technique known as ...

The table shows the results. Construct a line graph to represent the data. Draw each data point in the correct place and mark it with a cross. For example, Monday is 4 hours. The cross should be ...