In this graph the intervals on the bottom axis are unequal, making it difficult to read. Scales should either start at zero, or be concertinaed (squashed) as shown in the y-axis in the above graph.

The graphs of \(y = 2x + 1\) and \(y = 2x - 2\) are shown below. The graph of \(y = 2x + 1\) crosses the \(y\)-axis at (0, 1). The graph of \(y = 2x - 2\) crosses the ...