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The table represents the equation [tex]y = 2 - 4x[/tex].

\begin{tabular}{|c|c|}
\hline
[tex]$x$[/tex] & [tex]$y$[/tex] \\
\hline
-2 & 10 \\
\hline
-1 & \\
\hline
0 & 2 \\
\hline
1 & -2 \\
\hline
2 & -6 \\
\hline
\end{tabular}

Complete the table by finding the missing value of [tex]y[/tex] when [tex]x = -1[/tex].


Sagot :

Let's break down the problem step-by-step.

The equation given in the problem is [tex]\(y = 2 - 4x\)[/tex]. We need to fill in the missing [tex]\(y\)[/tex]-value in the table for [tex]\(x = -1\)[/tex]. Let's see how we can calculate the [tex]\(y\)[/tex]-values for the given [tex]\(x\)[/tex]-values and fill in the missing value.

1. When [tex]\(x = -2\)[/tex]:
[tex]\[ y = 2 - 4(-2) = 2 + 8 = 10 \][/tex]
So, [tex]\(y = 10\)[/tex].

2. When [tex]\(x = -1\)[/tex]:
[tex]\[ y = 2 - 4(-1) = 2 + 4 = 6 \][/tex]
So, [tex]\(y = 6\)[/tex].

3. When [tex]\(x = 0\)[/tex]:
[tex]\[ y = 2 - 4(0) = 2 - 0 = 2 \][/tex]
So, [tex]\(y = 2\)[/tex].

4. When [tex]\(x = 1\)[/tex]:
[tex]\[ y = 2 - 4(1) = 2 - 4 = -2 \][/tex]
So, [tex]\(y = -2\)[/tex].

5. When [tex]\(x = 2\)[/tex]:
[tex]\[ y = 2 - 4(2) = 2 - 8 = -6 \][/tex]
So, [tex]\(y = -6\)[/tex].

Now we have all the [tex]\(y\)[/tex]-values:
- [tex]\(x = -2\)[/tex], [tex]\(y = 10\)[/tex]
- [tex]\(x = -1\)[/tex], [tex]\(y = 6\)[/tex]
- [tex]\(x = 0\)[/tex], [tex]\(y = 2\)[/tex]
- [tex]\(x = 1\)[/tex], [tex]\(y = -2\)[/tex]
- [tex]\(x = 2\)[/tex], [tex]\(y = -6\)[/tex]

Here is the completed table:

[tex]\[ \begin{tabular}{|c|c|} \hline $x$ & $y$ \\ \hline -2 & 10 \\ \hline -1 & 6 \\ \hline 0 & 2 \\ \hline 1 & -2 \\ \hline 2 & -6 \\ \hline \end{tabular} \][/tex]

The specific missing [tex]\(y\)[/tex]-value for [tex]\(x = -1\)[/tex] is [tex]\(6\)[/tex].