Question

Find the limit of the function by using direct substitution.

lim->2 (x^2+8x-2)

18
Does not exist
0
-18

Answer 1

well, just make x=2 and what do you get?

Answer 2

does not exist

Answer 3

For a polynomial function.

If x→a (for all defined values of a (not infinities), then the answer is going to be a real number)

if x→-∞ OR +∞, then the answer will depend on the leading coefficient, but would be one of the two. Either +∞, or -∞.