Asales team estimates that the number of new phones they will sell is a function of the price that they set. they estimate that if they set the price at x dollars, they will sell f(x) = 1720 - 5x phones. find the price x which will maximize the company’s revenue

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

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation: