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Algebra / Linear functions Difficulty: Easy

Oxygen gas is placed inside a tank with a constant volume. The graph shows the estimated temperature $y$ , in kelvins, of the oxygen gas when its pressure is $x$ atmospheres.

What is the estimated temperature, in kelvins, of the oxygen gas when its pressure is $6$ atmospheres?

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Explanation

Choice C is correct. For the graph shown, the x-axis represents pressure, in atmospheres, and the y-axis represents temperature, in kelvins. Therefore, the estimated temperature, in kelvins, of the oxygen gas when its pressure is $6$ atmospheres is represented by the y-coordinate of the point on the graph that has an x-coordinate of $6$ . The point on the graph with an x-coordinate of $6$ has a y-coordinate of approximately $700$ . Therefore, the estimated temperature, in kelvins, of the oxygen gas when its pressure is $6$ atmospheres is $700$ .

Choice A is incorrect. This is the pressure, in atmospheres, not the estimated temperature, in kelvins, of the oxygen gas when its pressure is $6$ atmospheres.

Choice B is incorrect and may result from conceptual or calculation errors.

Choice D is incorrect and may result from conceptual or calculation errors.