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A voter registration drive was held in Town Y. The number of voters, V, registered T days after the drive began can be estimated by the equation V = 3,450 + 65T. What is the best interpretation of the number 65 in this equation?
A) The number of registered voters at the beginning of the registration drive
B) The number of registered voters at the end of the registration drive
C) The total number of voters registered during the drive
D) The number of voters registered each day during the drive
The correct answer is choice D. For each day that passes, it is the next day of the registration drive, and so T increases by 1. When T increases by 1, the value of V = 3,450 + 65T increases by 65. That is, the number of voters registered increased by 65 for each day of the drive.
Therefore, 65 is the number of voters registered each day during the drive. You should note that choice A describes the number 3,450, and the numbers described by choices B and C can be found only if you know how many days the registration drive lasted; this information is not given in the question.