The following table shows the relationship between the variables \(x\) and \(y\).
| \(\boldsymbol{x}\) | 1 | 2 | 3 |
|---|---|---|---|
| \(\boldsymbol{y}\) | 1 | 3 | 5 |
This relationship can be defined as:
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\( y = 2x \)
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\( x = y - 1 \)
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\( y = 2x - 1 \)
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\( y = x^2 - 1 \)
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\( x = y + 1 \)
Try to solve it before checking the answer.
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\( y = 2x – 1 \)
For \( x = 1 \), we have:
For \( x = 2 \), we have:
For \( x = 3 \), we have: