Explanation:
if you have not left or anything, then the given function is just a straight line :
f(x) = 6x + 2
that means it is continuous (it has no gaps - especially not around x = 2).
the limit of that function when x goes towards 2 is simply using that x-value directly as argument :
f(2) = 6×2 + 2 = 14
L = limx→2(6x+2) = 14