7.2 CHAPTER 7. DIFFERENTIAL CALCULUS
8 6 − 4 − − 2 − 2 4
2
4
− 2
− 4
− 6
− 8
xy��Figure 7.1: Graph of y =(x+6)(x+6x−2).Limits EMCBE
We can now introduce anew notation. For the function y =
(x + 6)(x− 2)
x + 6
, we can write:xlim→− 6(x + 6)(x− 2)
x + 6=− 8.
This is read: the limit of(x+6)(x+6x−2)as x tends to− 6 is− 8.