Explore Westonci.ca, the premier Q&A site that helps you find precise answers to your questions, no matter the topic. Experience the ease of finding reliable answers to your questions from a vast community of knowledgeable experts. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Which table has a constant of proportionality between [tex]\( y \)[/tex] and [tex]\( x \)[/tex] of 10?

Choose one answer:

A)
[tex]\[
\begin{array}{|c|c|}
\hline
x & y \\
\hline
2 & 20 \\
12 & 132 \\
22 & 220 \\
\hline
\end{array}
\][/tex]

B)
[tex]\[
\begin{array}{|c|c|}
\hline
x & y \\
\hline
5 & 20 \\
7 & 30 \\
10 & 40 \\
\hline
\end{array}
\][/tex]

C)
[tex]\[
\begin{array}{|c|c|}
\hline
x & y \\
\hline
9 & 90 \\
14 & 140 \\
24 & 240 \\
\hline
\end{array}
\][/tex]

Sagot :

To determine which table has a constant of proportionality between [tex]\(y\)[/tex] and [tex]\(x\)[/tex] of 10, we need to check whether the ratio [tex]\(\frac{y}{x}\)[/tex] is equal to 10 for every pair of [tex]\( (x, y) \)[/tex] in that table.

Let's examine each table step by step.

### Table A
[tex]\[ \begin{array}{|cc|} \hline x & y \\ \hline 2 & 20 \\ 12 & 132 \\ 22 & 220 \\ \hline \end{array} \][/tex]

Calculate [tex]\(\frac{y}{x}\)[/tex] for each pair:
[tex]\[ \frac{20}{2} = 10 \][/tex]
[tex]\[ \frac{132}{12} = 11 \][/tex]
[tex]\[ \frac{220}{22} = 10 \][/tex]

Since one of the ratios (132/12) is not equal to 10, Table A does not have a constant of proportionality of 10.

### Table B
[tex]\[ \begin{array}{|cc|} \hline x & y \\ \hline 5 & 20 \\ 7 & 30 \\ 10 & 40 \\ \hline \end{array} \][/tex]

Calculate [tex]\(\frac{y}{x}\)[/tex] for each pair:
[tex]\[ \frac{20}{5} = 4 \][/tex]
[tex]\[ \frac{30}{7} \approx 4.2857 \][/tex]
[tex]\[ \frac{40}{10} = 4 \][/tex]

None of the ratios in Table B is equal to 10, so Table B does not have the required constant of proportionality.

### Table C
[tex]\[ \begin{array}{|cc|} \hline x & y \\ \hline 9 & 90 \\ 14 & 140 \\ 24 & 240 \\ \hline \end{array} \][/tex]

Calculate [tex]\(\frac{y}{x}\)[/tex] for each pair:
[tex]\[ \frac{90}{9} = 10 \][/tex]
[tex]\[ \frac{140}{14} = 10 \][/tex]
[tex]\[ \frac{240}{24} = 10 \][/tex]

All the ratios in Table C are equal to 10, so Table C has a constant of proportionality of 10.

Therefore, the correct answer is:

(C)
[tex]\[ \begin{array}{|cc|} \hline x & y \\ \hline 9 & 90 \\ 14 & 140 \\ 24 & 240 \\ \hline \end{array} \][/tex]