The line that is described by the equation y = -4x + 1 contains which of the following points?
a) (0,1)
b) (-3,1)
c) (1,3)
d) (-2,-3)

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

the answer is 1/4

step-by-step explanation: