To determine if the given graph corresponds to the function \( y = x - 1 \), we can analyze the points given that lie on the wavy vertical line:
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For the point (-2, -3): \[ y = -2 - 1 = -3 \quad \text{(matches)} \]
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For the point (-1, -2): \[ y = -1 - 1 = -2 \quad \text{(matches)} \]
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For the point (0, -1): \[ y = 0 - 1 = -1 \quad \text{(matches)} \]
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For the point (1, 6): \[ y = 1 - 1 = 0 \quad \text{(does not match)} \]
Since the point \((1, 6)\) does not match the expected output of \( y = x - 1 \) at \( x = 1 \), the graph does not represent the function \( y = x - 1 \).
So the answer is: 2 (no).