Explain why the graph of [math]f[/math] is a straight line.
Explain why there is a hole in the graph of [math]f[/math] at [math]x=2[/math] .
Move the slider to the right so that P and Q are furthest from the hole in the graph. Now slowly move the slider to the left. Observe both limits. What do you notice?
[size=100]What appears to be limit of the function [math]f\left(x\right)[/math]as [math]x[/math] tends to 2?[/size]