Question

Evaluate f(x) = 3/6x+6 when x = -1

a) undefined
b) 0
c) 3
d) 3/36

Answer 1

a) Undefined.

Explanation:

`f(x) = \frac 3{6x+6} = (3)/(6(x+1)) = (1)/(2(x+1))\\\\\\f(-1) =(1)/(2(-1+1))= (1)/(0)`