Question

Given f(x) = 5x^4 – x^2 + 6x – 1. What is Limit of f (x) as x approaches negative 1?

Answer 1

-3.

Explanation:

Substitute x = -1 into the expression.

5(-1)^4 - (-1)^2 + 6(-1) - 1

=5 - 1 - 6 - 1

= 5 - 8

= -3.