Based on the description of the graph, we can analyze the statements as follows:
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The plumber has a steeper rate of change than the entry level worker.
- True: The plumber earns $60/hr and the entry-level worker earns $6/hr. The plumber's rate of pay is significantly higher than that of the entry-level worker, resulting in a steeper slope.
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The entry level worker has the same slope as the lawyer.
- False: The lawyer earns $300/hr and the entry-level worker earns $6/hr. Their rates of pay are very different, leading to different slopes.
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The plumber initially earns more money than the lawyer, but the lawyer earns more as more hours are worked.
- False: The plumber’s hourly rate ($60/hr) is less than the lawyer’s hourly rate ($300/hr), meaning the lawyer earns more than the plumber right from the start.
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The lawyer has a greater initial amount of earnings than the plumber.
- True: The lawyer's hourly rate is higher than the plumber's hourly rate, so the lawyer has greater earnings at any given time.
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Bill Gates has the same y-intercept as the entry level worker.
- False: The y-intercept typically represents the initial earnings at hour 0. Bill Gates’ hourly rate ($451/hr) is much higher than that of the entry-level worker ($6/hr), suggesting that they would not have the same y-intercept unless indicated otherwise.
Based on this analysis, the true statements are the first and fourth ones:
- The plumber has a steeper rate of change than the entry level worker.
- The lawyer has a greater initial amount of earnings than the plumber.