Question

How do you find the relative extrema for f(x)=x2−3x−4x−2?

Answer 1

Use the second derivative test to find the relative extrema for f(x) = x4 - 8x2 - 4.

Minimum at (2, -20); maximum at (0, -4)

Minimum at (-2, -20); maximum at (2, -20)

Minimum at (2, -20) and (-2, -20); maximum at (0, -4)

Minimum at (0, -4); maximum at (2, -20) and (-2, -12)