But look at the label for the y-axis. By making the graph start at 95 percent, Chevrolet made what’s actually a difference of a few percentage points seem like a much bigger deal.

Figures Figures come in two types: graphs and images/diagrams. Graphs are typically used to present your data in a form that is easy for the reader to understand. Images and diagrams are more likely ...

The bottom chart of Figure 4 makes it much clearer that the rate of change or growth rate is constant. Dr. Nicolas Bissantz in his blog, Me, Myself, and BI, would call the linear chart a panic chart.