To determine the tax rate for the $7,000 earned over $91,150, we need to refer to the tax rate indicated for that income bracket on the graph in Quadrant 1.
Assuming you're able to view the graph, look for the tax rate that applies to taxable income levels over $91,150. If the graph indicates a specific tax rate for income in this range, that will be the tax rate for the $7,000 earned over $91,150.
For example, if the graph shows that the tax rate for the income over $91,150 is, say, 25%, then the answer would be:
The tax rate for the $7,000 of taxable income earned over $91,150 is 25%.
Please check the graph to find the exact tax rate for your specific situation.