When a < b the follwoing worksheet was used to determine the chart:
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| 3 | 5 | 3 | 0 | 0 |
| 3 | 5 | 2.60 | 2.5 | 0.52 |
| 3 | 5 | 1.5 | 4.33 | 1.05 |
| 3 | 5 | 0 | 5 | 1.57 |
| 3 | 5 | -1.5 | 4.33 | 2.09 |
| 3 | 5 | -2.60 | 2.5 | 2.62 |
| 3 | 5 | -3 | 0 | 3.14 |
| 3 | 5 | -2.60 | -2.5 | 3.67 |
| 3 | 5 | -1.5 | -4.33 | 4.19 |
| 3 | 5 | 0 | -5 | 4.71 |
| 3 | 5 | 1.5 | -4.33 | 5.24 |
| 3 | 5 | 2.60 | -2.5 | 5.76 |
| 3 | 5 | 3 | 0 | 6.28 |
The highlighted rows indicate the x-intercepts and y-intercepts of the graph, examine the symmetry over the x-axis and y-axis. Observe that the major axis will be on the y-axis where the maximum value is 5, whereas the minor axis will be on the x-axis where the maximum value is 3.