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A function equals 3x + 1 below x = 1 and 7x^2 - 3 at or above 1. Its limit at 1 is
ADoes not exist
BEqual to 3
CEqual to 7
DEqual to 4
Answer & Solution
Correct answer: D. Equal to 4
The left limit is 3(1)+1 = 4 and the right limit is 7(1)-3 = 4, so the limit is 4.
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