Question

Medal
Consider the function y = 3x5 – 25x3 + 60x + 1. Use the first derivative test to decide whether this function has a maximum at x = 1. Which of the following describes what you found?

A) The derivative is positive to the left of x = 1 and negative to the right of x = 1, so the function has a relative minimum at x = 1.
B) The derivative is positive to the left of x = 1 and negative to the right of x = 1, so the function has a relative maximum at x = 1.

Answer 1

c) The derivative is positive to the left of x = 1 and positive to the right of x = 1, so the function has neither a relative maximum nor a minimum at x = 1.
D) The derivative is negative to the left of x = 1 and positive to the right of x = 1, so the function has a relative minimum at x = 1.
E) None of these apply.

Answer 2

A is the answer. Can you give me a medal and best answer

Answer 3

Thanks, could you explain a little?