Question immanu
Immanuel purchased a certain rare coin on January 1. The function , where , gives the predicted value, in dollars, of the rare coin years after Immanuel purchased it. What is the best interpretation of the statement “ is approximately equal to ” in this context?
When the rare coin's predicted value is approximately dollars, it is greater than the predicted value, in dollars, on January 1 of the previous year.
When the rare coin’s predicted value is approximately dollars, it is times the predicted value, in dollars, on January 1 of the previous year.
From the day Immanuel purchased the rare coin to years after Immanuel purchased the coin, its predicted value increased by a total of approximately dollars.
years after Immanuel purchased the rare coin, its predicted value is approximately dollars.
Immanuel purchased a certain rare coin on January 1. The function f ( x ) =
Hard-difficulty · SAT Math · Nonlinear Functions — Function composition and evaluation. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice D is correct. It’s given that the function gives the predicted value, in dollars, of a certain rare coin years after Immanuel purchased it. It follows that represents the predicted value, in dollars, of the coin years after Immanuel purchased it. Since the value of is the value of when , it follows that “ is approximately equal to ” means that is approximately equal to when . Therefore, the best interpretation of the statement “ is approximately equal to ” in this context is years after Immanuel purchased the rare coin, its predicted value is approximately dollars.
Choice A is incorrect and may result from conceptual errors.
Choice B is incorrect and may result from conceptual errors.
Choice C is incorrect and may result from conceptual errors.
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