To determine the correct graph that represents the cost of using the internet at a coffee shop, where the cost is $2 per hour, we can analyze the expected relationship:
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If \( x \) represents the number of hours and \( y \) represents the cost, then the relationship can be expressed as: \[ y = 2x \]
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When \( x = 0 \), \( y = 2(0) = 0 \) (the cost is $0).
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When \( x = 1 \), \( y = 2(1) = 2 \) (the cost is $2).
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When \( x = 2 \), \( y = 2(2) = 4 \) (the cost is $4).
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When \( x = 3 \), \( y = 2(3) = 6 \) (the cost is $6).
Now, let's review the provided graph options:
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The first graph shows points (0, 0), (2, 1), (4, 2), and (6, 3). This does not match our expected relationship.
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The second graph has points (0, 0), (1, -2), and (2, -4). This does not match our expected relationship.
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The third graph has points (0, 0), (1, 2), and (2, 4). This matches our expected relationship as:
- When x = 1, y = 2 (correct)
- When x = 2, y = 4 (correct)
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The fourth graph has points (0, 0), (2, -1), and (4, -2). This does not match our expected relationship.
Given this analysis, the third graph is the correct one to represent the relationship between hours used and the cost of internet usage.
Thus, the answer is the graph with points (0, 0), (1, 2), and (2, 4).