Use a Determinant to Determine Whether the Points (-5, 1) $\left| \begin{array} { c c c } - 5 & 1 & 1 \\- 8 & - 1 & 1 \\1 & 5 & 1\end{array} \right| = 0 \text {; therefore, the points are collinear. }$

question 263

Multiple Choice

Use a determinant to determine whether the points (-5, 1) , (-8, -1) and (1, 5) are collinear.

• A) \(\left| \begin{array} { c c c }
• - 5 & 1 & 1 \\
• - 8 & - 1 & 1 \\
• 1 & 5 & 1
• \end{array} \right| = 0 \text {; therefore, the points are collinear. }\)
• B) \(\left| \begin{array} { c c c }
• - 5 & 1 & 1 \\
• - 8 & - 1 & 1 \\
• 1 & 5 & 1
• \end{array} \right| = 1 \text {; therefore, the points are not collinear }\)

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Tables that show the level of demand for a specific good or service at different price points, typically holding all other factors constant.

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