<u>Answer:
</u>
By observing the graph, it can be said that the first half of the graph illustrates a progressive tax.
<u>Explanation:
</u>
- The tax in the first half of the graph ranges from the lowest 20% to the fourth 20%.
- In this range, it can be seen that for every income group, the total effective tax rate has increased considerably at every new stage.
- The tax rate has increased by approximately 3 to 4 percent every time.
