1 Which of the following lines is parallel to the line y 3+1 and contains the point (4,-2)?
A y=-x+2
B y = x-2
c y=-*x+4
Dy=-*-4
4
= x-
4

(-5,-28)

i graphed to on desmos.

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

where is the graph? need more info