A student graphs a function in the viewing window and
MATHEMATICS · Subjective · AP · Calculus AB · Limits and Continuity · Limits and Continuity
Problem
A student graphs a function f in the viewing window −100≤x≤100 and −1≤y≤1. Near x=0, the curve appears to coincide with the x-axis. In one sentence, explain why this observation alone is insufficient to conclude that x→0limf(x)=0.