The vertical axis is a line which goes up and down. The vertical axis is on ... You should always look at the scale on a time graph. The scale may go up in ones or count in steps.

To work out a gradient, use the scales of the axes and find how many units you go up or down for each unit you move right. To work out the equation of a line from a graph, find the gradient and ...

This example shows how to use a SAS/GRAPH Web driver to generate a drill-down graph (see About Drill-down Graphs). The example uses the HTML driver, but the principles would be the same for using the ...