The Graph Below Shows the Height of Sand in an Hourglass

question 122

Multiple Choice

The graph below shows the height of sand in an hourglass at various times. Use the graph to find the average rate of change of the height of the sand.

• A) \(1 \mathrm {~mm}\) per second
• B) \(0.85 \mathrm {~mm}\) per second
• C) \(0.75 \mathrm {~mm}\) per second
• D) \(1.3 \mathrm {~mm}\) per second

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Definitions:

Joint Return

A combined tax return filed by married couples who choose to report their incomes, deductions, and credits on the same return.

Taxable Income

The amount of an individual's or company's income used to determine how much tax is owed, calculated as gross income minus deductions and exemptions.

Standard Deduction

A predefined tax deduction that reduces the income subject to tax, available to all taxpayers who do not itemize deductions.

Joint Return

A tax return filed by a married couple who combine their income, deductions, and credits on a single form.