Question

Consider the function y = 3x5 – 25x3 + 60x + 1. Use the second derivative test to determine whether our function has a relative maximum or minimum at x = –1. Which of the following describes what you found?

x = –1 isn't a critical point, so I can't use the second derivative test, and there's neither a max nor a min there.
there, so there is a relative minimum at x = –1.
there, so there is neither a max nor a min there.
there, so the second derivative test fails

I think its C, am I wrong?

Answer 1

i think you are correct

Answer 2

Yay!