Answer:
$1,600
Step-by-step explanation:
Calculation to determine By how much will the income from the second job increase her tax liability
Based on the information given she had the amount of $10,000 as the additional taxable income which means that $9,000 out of the $10,000 will be taxed at 15% while the remaining $1,000 ($10,000-$9,000) will be taxed at 25% according to the single tax rate schedule
Increase in tax liability =($9,000 × 15%) + ($1,000 × 25%)
Increase in tax liability= $1,600
Therefore By how much will the income from the second job increase her tax liability is $1,600