Find the maximum profit and the number of units that must be produced and sold in order to yield the maximum profit. Assume that revenue, R(x), and cost, C(x), of producing x units are in dollars.
R(x) = 60x-.5x^2 and C(x) = 4x+20

The maximum profit at x =5.6 units is

Pmₐₓ = 136.8 per unit cost

Step-by-step explanation:

Explanation:-

Given Revenue function  R(x) = 60x-.5x^2 and

Given the cost function is C(x) = 4x+20

Profit = R(x) - C(x)

profit = 60x-.5x^2 - (4x+20)

         = 60x - 5x^2 -4x -20

    P    =  56x - 5x^2 -20  … ( i )

Now differentiating equation (1) with respective to 'x'

  P¹     = 56 - 5(2x) -0

  P¹     = 56 -10x  

The derivative of profit function is equating zero

56 -10x  =0

56 =10x

x = 5.6

The maximum profit at x =5.6

        Pmₐₓ    =  56x - 5x^2 -20  

                    = 56(5.6) -5(5.6)^2-20

                   =  136.8

Final answer:-

The maximum profit at x =5.6 units is

Pmₐₓ = 136.8 per unit cost  

i dont know

step-by-step explanation:

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1