Final answer:
To find the federal income tax for a married couple filing jointly with a taxable income of $170,000, you can use the tax schedule. The correct equation to find the federal income tax for a married couple with an income between $151,200 and $230,450 is y = 0.28x + 26,075.
Step-by-step explanation:
To find the federal income tax for a married couple filing jointly with a taxable income of $170,000, you can refer to the tax schedule provided. The tax owed can be calculated using the formula: tax = base tax + (tax rate × (taxable income - lower limit)). For this case, the tax would be $12,689.50. Therefore, none of the options A, B, C, or D provided match the correct federal income tax amount for this couple.
To write an equation for finding the federal income tax in 2015 for a married couple filing jointly with an income between $151,200 and $230,450, you can use the information provided in the table. Based on the tax rates and income brackets, the correct equation is y = 0.28x + 26,075. Therefore, option A is the correct equation.