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Desmond runs a scuba rental shop. He recorded data on the air consumed during a 40 minute dive by divers with various amounts of dive experience. The graph of these data is shown. |
| | A) | The data show a non-linear relation, with air use increasing as experience increases. |
| | B) | The data show a non-linear relation, with air use decreasing as experience increases. |
| | C) | The data show a linear relation, with air use decreasing as experience increases. |
| | D) | The data show no apparent pattern. |
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Monique decided to climb partway up Mt. Logan during a visit to the Yukon. She recorded temperature at various altitudes. The data are shown in the graph. |
| | A) | A line of best fit is a good model for these data. |
| | B) | A line of best fit is not a good model for these data. There are not enough data points. |
| | C) | A line of best fit is not a good model for these data. The values for temperature are decreasing, not increasing. |
| | D) | A line of best fit is not a good model for these data. There is no apparent pattern. |
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Use the graph in question #2 to estimate the temperature at sea level. |
| | A) | 28°C |
| | B) | 26°C |
| | C) | 23°C |
| | D) | 21°C |
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Use the graph in question #2 to estimate the temperature at 1200 m. |
| | A) | 17°C |
| | B) | 16°C |
| | C) | 15°C |
| | D) | 14°C |
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Sketch a curve of best fit for the data shown in question #1. Use it to estimate the air used by a person on their first dive. |
| | A) | 3050 PSI |
| | B) | 3100 PSI |
| | C) | 3150 PSI |
| | D) | 3200 PSI |
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