The vertex of the function is a maximum at the point; (-4,0)
We are given the absolute value function;
f(x) = -²/₃|x + 4|
Now, the vertex of this function will have to occur when f(x) = 0 which will either be a maximum or minimum.
Thus, at f(x) = 0, we have;
-²/₃|x + 4| = 0
divide both sides by -2/3 to get;
x + 4 = 0
x = -4
Thus, the vertex will be at the point (-4, 0)
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