Identify an equation in point-slope form for the line perpendicular to y 3x+5 that passes through (4, -1). A. y +1-3(x-4) B. y-4--|(x+1) OC. y+ O D. y-1 -3(x+4)​

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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

can you make your screen more see able?

then i might be able to .