CPM Homework Help : PC3 Problem 4-74

Compare and contrast $j(x)=\frac{x}{x+2}$ and $k(x)=\frac{x^2-2x}{x^2-4}$ . How are the functions similar? How are they different?

Hint:

$k(x)=\frac{x(x-2)}{(x+2)(x-2)}$

More Help:

Graph each of the functions and compare them. Be sure to consider the locations of any discontinuities.