Stuck on this problem, please help

(a) -7

(b) 7

(c) DNE

Step-by-step explanation:

(a) lim f(x) x -->0-

= lim 7 (-x) / x

= -7

(b)  lim f(x) x -->0+

= lim 7y / y

= 7

(c) lim f(x) ≠ lim f(x)

≠: does not equal sign

x -->0-  ≠ x -->0+

so lim f(x) x -->0 = does not exist

look at the pictures if you don't understand

i think is g(1)=-1.

hope that i can