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Two-variable data: Models and scatterplots SAT question

Math · Problem-Solving and Data Analysis · Easy · Answer it here, explanation included.

An airplane descends from an altitude of $9, 500$ feet to $5, 000$ feet at a constant rate of $400$ feet per minute. What type of function best models the relationship between the descending airplane's altitude and time?

ExplanationShow

Choice B is correct. It′s given that the airplane descends at a constant rate of $400 feet per minute$ . Since the altitude decreases by a constant amount during each fixed time period, the relationship between the airplane′s altitude and time is linear. Since the airplane descends from an altitude of $9, 500 feet$ to $5, 000 feet$ , the airplane′s altitude is decreasing with time. Thus, the relationship is best modeled by a decreasing linear function.

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

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

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

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Two-variable data: Models and scatterplots SAT question

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