At Westonci.ca, we connect you with the best answers from a community of experienced and knowledgeable individuals. Our platform connects you with professionals ready to provide precise answers to all your questions in various areas of expertise. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Select the correct answer.

What is the slope of the linear relationship shown in this table of values?

\begin{tabular}{|c|c|}
\hline
[tex]$x$[/tex] & [tex]$y$[/tex] \\
\hline
-4 & 11 \\
\hline
2 & -1 \\
\hline
5 & -7 \\
\hline
\end{tabular}

A. -3

B. -2

C. 2

D. 3


Sagot :

To determine the slope of the linear relationship given in the table of values, we can use the formula for the slope between two points [tex]\((x_1, y_1)\)[/tex] and [tex]\((x_2, y_2)\)[/tex]:

[tex]\[ m = \frac{y_2 - y_1}{x_2 - x_1} \][/tex]

Here are the given points from the table:

[tex]\[ \begin{array}{|c|c|} \hline x & y \\ \hline -4 & 11 \\ \hline 2 & -1 \\ \hline 5 & -7 \\ \hline \end{array} \][/tex]

First, we calculate the slope using the points [tex]\((-4, 11)\)[/tex] and [tex]\((2, -1)\)[/tex].

[tex]\[ m = \frac{-1 - 11}{2 - (-4)} = \frac{-1 - 11}{2 + 4} = \frac{-12}{6} = -2 \][/tex]

Next, we should confirm that the same slope applies between the points [tex]\((2, -1)\)[/tex] and [tex]\((5, -7)\)[/tex].

[tex]\[ m = \frac{-7 - (-1)}{5 - 2} = \frac{-7 + 1}{5 - 2} = \frac{-6}{3} = -2 \][/tex]

Since the slope between both pairs of points is the same [tex]\(-2\)[/tex], we can conclude that this is the slope of the linear relationship.

Thus, the correct answer is:

B. -2