In: Math
Sketch the graph of f by hand and use your sketch to find the absolute and local maximum and minimum values of f. (If an answer does not exist, enter DNE.) Absolute maximum, absolute minimum, local maximum, local minimum.
f(x) = ln 3x, 0 < x ≤ 7
Find the absolute maximum and absolute minimum values of f on the given intervals(absolute maximum, absolute minimum).
f(x) = 6x^3 − 9x^2 − 216x + 3, [−4, 5]
f(x) = x/x^2 − x + 9, [0, 9]
f(x) = ln(x^2 + 3x + 4), [−2, 2]