The function f is defined above. What is the value of ?
A
250
B
500
C
750
D
2,000
Correct answer: C
Explanation
Choice C is correct. Adding the like terms x and yields the equation . Substituting 20 for x yields . The product is equal to 25, and the difference is equal to 30. Substituting these values in the given equation gives , and multiplying 25 by 30 results in .
Choices A, B, and D are incorrect and may result from conceptual or computational errors when finding the value of .
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id cb_question_bank:fcd805ea-f381-4e59-a94b-13f3609c631b · question ee05c84e · IBN 021520-DC
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