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Does the following table show a proportional relationship between the variables \( x \) and \( y \)?

\begin{tabular}{|c|c|c|c|}
\hline
\( x \) & \(\frac{1}{4}\) & \(\frac{2}{4}\) & \(\frac{3}{4}\) \\
\hline
\( y \) & 3 & 6 & 9 \\
\hline
\end{tabular}

Choose one answer:
A. Yes
B. No

Sagot :

To determine if there is a proportional relationship between the variables \( x \) and \( y \) given in the table, we need to check if the ratio \(\frac{y}{x}\) is constant for all pairs \((x, y)\).

We'll evaluate the ratio for each pair of values:

1. For \( x = \frac{1}{4} \) and \( y = 3 \):
[tex]\[ \frac{y}{x} = \frac{3}{\frac{1}{4}} = 3 \times 4 = 12 \][/tex]

2. For \( x = \frac{2}{4} \) (which simplifies to \(\frac{1}{2}\)) and \( y = 6 \):
[tex]\[ \frac{y}{x} = \frac{6}{\frac{1}{2}} = 6 \times 2 = 12 \][/tex]

3. For \( x = \frac{3}{4} \) and \( y = 9 \):
[tex]\[ \frac{y}{x} = \frac{9}{\frac{3}{4}} = 9 \times \frac{4}{3} = 12 \][/tex]

Since the ratio \(\frac{y}{x}\) is constant and is equal to 12 for all given pairs of \((x, y)\), we can conclude that there is a proportional relationship between \( x \) and \( y \).

Therefore, the answer is:
(A) Yes
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