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Given that the function graphed is f(x), what is f(4)?
A)
-2
B)

4
o
-6
D
ep. com/modules/questions/qq. php?testid-1020&assignment_id=4 3384472&strand-5066&element -40471&totalQuestions-108ck-UTC XIN TYEETK8condition-random

5

step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204