Ask questions, share knowledge, and connect with a vibrant community on IDNLearn.com. Our platform offers reliable and detailed answers, ensuring you have the information you need.

Identify the system of linear equations from the tables of values given below.

[tex]\[
\begin{array}{|c|c|}
\hline
x & y \\
\hline
0 & 2 \\
\hline
-4 & 0 \\
\hline
6 & 5 \\
\hline
-6 & -1 \\
\hline
\end{array}
\][/tex]

[tex]\[
\begin{array}{|c|c|}
\hline
x & y \\
\hline
0 & 1 \\
\hline
-2 & 0 \\
\hline
-4 & -1 \\
\hline
2 & 2 \\
\hline
\end{array}
\][/tex]

A. [tex]\( y = -\frac{1}{2}x - 2 \)[/tex]
[tex]\( y = -\frac{1}{2}x + 1 \)[/tex]

B. [tex]\( y = -x - 2 \)[/tex]
[tex]\( y = -x + 1 \)[/tex]

C. [tex]\( y = \frac{1}{2}x + 2 \)[/tex]
[tex]\( y = \frac{1}{2}x + 1 \)[/tex]

D.
[tex]\[
\begin{array}{l}
y = x + 2 \\
y = x + 1
\end{array}
\][/tex]


Sagot :

To solve this problem, let's first determine the equations that fit the tables of values provided.

### For the first table:
[tex]\[ \begin{array}{|c|c|} \hline x & y \\ \hline 0 & 2 \\ \hline -4 & 0 \\ \hline 6 & 5 \\ \hline -6 & -1 \\ \hline \end{array} \][/tex]

Using these points, we can find the best-fit line [tex]\(y = mx + b\)[/tex], where [tex]\(m\)[/tex] is the slope and [tex]\(b\)[/tex] is the intercept.

Slope [tex]\(m\)[/tex] is calculated using the formula:
[tex]\[ m = \frac{y_2 - y_1}{x_2 - x_1} \][/tex]
Using two points (0, 2) and (-4, 0):
[tex]\[ m = \frac{0 - 2}{-4 - 0} = \frac{-2}{-4} = \frac{1}{2} \][/tex]

Intercept [tex]\(b\)[/tex]:

Using the slope and one of the points, say (0, 2):
[tex]\[ y = mx + b \implies 2 = \frac{1}{2}(0) + b \implies b = 2 \][/tex]

Thus, the equation is:
[tex]\[ y = \frac{1}{2}x + 2 \][/tex]

### For the second table:
[tex]\[ \begin{array}{|c|c|} \hline x & y \\ \hline 0 & 1 \\ \hline -2 & 0 \\ \hline -4 & -1 \\ \hline 2 & 2 \\ \hline \end{array} \][/tex]

Using these points, we can find the best-fit line [tex]\(y = mx + b\)[/tex].

Slope [tex]\(m\)[/tex] is calculated:
Using points (0, 1) and (-2, 0):
[tex]\[ m = \frac{0 - 1}{-2 - 0} = \frac{-1}{-2} = \frac{1}{2} \][/tex]

Intercept [tex]\(b\)[/tex]:

Using the slope and one of the points, say (0, 1):
[tex]\[ y = mx + b \implies 1 = \frac{1}{2}(0) + b \implies b = 1 \][/tex]

Thus, the equation is:
[tex]\[ y = \frac{1}{2}x + 1 \][/tex]

### Summary of linear equations:

1. [tex]\(y = \frac{1}{2}x + 2\)[/tex]
2. [tex]\(y = \frac{1}{2}x + 1\)[/tex]

Comparing these equations with the options:

A. [tex]\(y = -\frac{1}{2}x - 2\)[/tex] and [tex]\(y = -\frac{1}{2}x + 1\)[/tex]

B. [tex]\(y = -x - 2\)[/tex] and [tex]\(y = -x + 1\)[/tex]

C. [tex]\(y = \frac{1}{2}x + 2\)[/tex] and [tex]\(y = \frac{1}{2}x + 1\)[/tex]

D. [tex]\(y = x + 2\)[/tex] and [tex]\(y = x + 1\)[/tex]

Clearly, the equations match Option C:
[tex]\[ y = \frac{1}{2}x + 2 \quad \text{and} \quad y = \frac{1}{2}x + 1 \][/tex]

Therefore, the correct answer is C.