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15 y 350 300 250 200 150 100 50 x O 50 100 150 200 250 ‒50 ‒100 ‒150 ‒200 The graph shows the estimated boiling point y, in degrees Celsius, of a normal paraffin with a molecular weight of x grams per mole, where 1 # x # 280. Which statement is the best interpretation of the point 149.02,186.05? ^ h
Correct answer: B (parsed from the explanation — this source omits an answer key for this item)
Explanation
Choice B is correct. It’s given that the graph shows the estimated boiling point y, in degrees Celsius, of a normal paraffin with a molecular weight of x grams per 149.02,186.05 149.02 mole. It follows that for the point ^ h, represents the 186.05 molecular weight, in grams per mole, of a normal paraffin and represents its estimated boiling point, in degrees Celsius. Therefore, the best interpretation 149.02,186.05 of the point ^ h is that a normal paraffin with a molecular weight of 149.02 186.05 grams per mole has an estimated boiling point of degrees Celsius. Choice A is incorrect. This statement represents a situation where x, not y, represents the boiling point, in degrees Celsius, and y, not x, represents the molecular weight, in grams, per mole. Choice C is incorrect and may result from conceptual errors. Choice D is incorrect and may result from conceptual errors. 46 SAT PRACTICE TEST #11 ANSWER EXPLANATIONS SAT ANSWER EXPLANATIONS n MATH: MODULE 2
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