Use the Regression Feature of a Graphing Utility to Find

question 99

Multiple Choice

Use the regression feature of a graphing utility to find a quadratic model for the data below.
$\begin{array}{|r|c|}\hline \boldsymbol{x} & \boldsymbol{y} \\\hline-2 & 9.8 \\\hline-1 & 4.1 \\\hline 0 & 3.3 \\\hline 1 & 6.6 \\\hline 2 & 13.8 \\\hline 3 & 24.1 \\\hline 4 & 39.5 \\\hline\end{array}$

• A) \(y = 1.91 x ^ { 2 } + 1.06 x + 3.15\)
• B) \(y = 1.81 x ^ { 2 } + 1.02 x + 3.3\)
• C) \(y = 2.21 x ^ { 2 } + 0.92 x + 3.3\)
• D) \(y = 2.11 x ^ { 2 } + 0.87 x + 3.65\)
• E) \(y = 2.01 x ^ { 2 } + 0.97 x + 3.44\)

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Definitions:

Corporate Tax Rate

The percentage of a corporation's profits that is paid to the government as tax.

Recession

A significant decline in economic activity spread across the economy, lasting more than a few months, typically visible in real GDP, real income, employment, industrial production, and wholesale-retail sales.

Variable Costs

Costs that vary directly with the level of production or the volume of services provided.

Gross Domestic Product

The total market value of all goods and services produced within a country in a specific time period, serving as a broad indicator of its economic health.