Employ the following methods to find the maximum of f (x) = 4x − 1.8x2 + 1.2x3 − 0.3x4 (a) Golden-section search (xl = – 2, xu = 4, εs = 1%).

the answer is 0.3175 hope that you ^w^

also you might actually want to put this picture up if you want people to solve it luckily i remember this question

answer: i feel you honey.

step-by-step explanation:

parallel lines have the same slope. so if the green line has a slope of -4, the slope of the red line is also -4.