Use a Graphing Utility to Find the Equation of the Line

question 226

Multiple Choice

Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
- $\begin{array}{c|ccccc}\mathrm{x} & 1 & 3 & 5 & 7 & 9 \\\hline \mathrm{y} & 143 & 116 & 100 & 98 & 90\end{array}$

• A) \(y = 6.2 x - 140.4\)
• B) \(y = - 6.8 x + 150.7\)
• C) \(y = - 6.2 x + 140.4\)
• D) \(y = 6.8 x - 150.7\)

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Definitions:

Contract Rate

Contract rate is the predetermined price agreed upon in a contract for services or goods, typically over a fixed period.

Annual Rate

The Annual Rate is the interest rate or growth rate for a year, often used in financial contexts to depict investments or loans.

Semiannual Rate

A rate of interest or growth that is calculated or applied twice per year.

Present Value

The contemporary valuation of an upcoming sum of money or cash flows over time, factoring in a designated rate of return.