MATHEMATICS · Single correct · AP · Calculus AB · Limits and Continuity · Limits and Continuity
Problem
The function g is defined for all x=2. The table gives values of g(x) for x close to 2.
x g(x)
1.9 4.02
1.99 4.001
1.999 4.0001
2.001 4.9998
2.01 4.99
2.1 4.90
Which statement best describes the two–sided limit of g as x approaches 2?
(a) The limit exists and equals 4.5, the average of the one–sided limits.
(b) The limit does not exist because values approaching 2 from the left tend toward 4 while values from the right tend toward 5.
(c) The limit exists and equals 4 because values sufficiently close to 2 are near 4.
(d) The limit does not exist because g(2) is not provided in the table.