Use a Graphing Calculator to Plot the Data and Find

question 96

Multiple Choice

Use a graphing calculator to plot the data and find the quadratic function of best fit.
-An engineer collects data showing the speed s of a given car model and its average miles per gallon M. Use a graphing calculator to plot the scatter diagram. What is the quadratic function of best fit? $$\begin{array} { l | l } \text { Speed, s } & \text { mph, M } \\\hline 20 & 18 \\30 & 20 \\40 & 23 \\50 & 25 \\60 & 28 \\70 & 24 \\80 & 22\end{array}$$

• A) M(s) = 0.063x² + 0.720x + 5.142
• B) M(s) = -0.631x² + 0.720x + 5.142
• C) M(s) = -0.0063x² + 0.720x + 5.142
• D) M(s) = -6.309x² + 0.720x + 5.142

Apply correct usage of proofreading symbols and techniques for error correction.

Recognize and use different types of indents and their applications in paragraph formatting.

Evaluate sources for credibility and relevance in research.

Understand the purpose and structure of various citation formats.

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