Question x-y-1-
The table shows three values of and their corresponding values of for the equation . In the table, is a constant. What is the value of ?
x y 1 11 2 19 3 a The table shows three values of x and
Hard-difficulty · SAT Math · Linear Functions — Rate of change applications. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice B is correct. It's given that the table shows three values of and their corresponding values of for the equation . It's also given that when the corresponding value of is , and is a constant. Substituting for and for in the given equation yields , or . Therefore, the value of is .
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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