Consider the following function
f(x) = - \(\frac{3}{4}\)x4 - 8x3 - \(\frac{45}{2}\)x2 + 105. Select the correct result from the following.1
The point x=-5 is a point of local minima.
2
The point x = 0 is a point of local minima.
3
The point x = 0 is a point of local maxima.
4
The point x = -3 is a point of local maxima.