All the coordinates have equal values for \(x\) and \(y\). This is shown by the points on the line such as (10, 10) and (-4, -4). Graph A is \(y = -x\). All the coordinates have \(x\) and \(y ...

The bars were drawn using one set of values ... linear scale. It shows how easily our eyes can pick up this kind of distortion. Drawing the data to scale is a basic requirement of an accurate graph.