Find the Domain of the Expression

question 112

Multiple Choice

Find the domain of the expression. x2 + 7x - 18

• A)all real numbers
• B)all real numbers except x = -9 and x = 2
• C)all real numbers except x = 0
• D)x = -9 or x = 2
• E)x > 0

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Definitions:

Vertical Equity

A principle in taxation that states taxpayers with a greater ability to pay should contribute more in taxes.

Regressive Tax

A tax for which high-income taxpayers pay a smaller fraction of their income than do low-income taxpayers.

Federal Tax Receipts

The revenue collected by the federal government from various taxes like income tax, corporation tax, and other levies.

Individual Income Taxes

Taxes levied on the income of individuals or households, varying with income levels.