Solutions to this year's final exam Question 6 was mistyped: It should have read "... stretched to a length of
FOUR feet." (Also, the second sentence arguably is ambiguous about the starting
point of the stretching.) None of the responses was correct for the problem as
written, and the curve on the final exam was well in excess of 3 points, so the
net result is that lucky guessers got 3 extra points. (Think of it as part of the
State Lottery.) I apologize for the error.