A) Demand function
price (x) demand (D(x))
4 540
3.50 810
D - 540 810 - 540
----------- = -----------------
x - 4 3.50 - 4
D - 540
----------- = - 540
x - 4
D - 540 = - 540(x - 4)
D = -540x + 2160 + 540
D = 2700 - 540x
D(x) = 2700 - 540x
Revenue function, R(x)
R(x) = price * demand = x * D(x)
R(x) = x* (2700 - 540x) = 2700x - 540x^2
b) Profit, P(x)
profit = revenue - cost
P(x) = R(x) - 30
P(x) = [2700x - 540x^2] - 30
P(x) = 2700x - 540x^2 - 30
Largest possible profit => vertex of the parabola
vertex of 2700x - 540x^2 - 30
When you calculate the vertex you find x = 5 /2
=> P(x) = 3345
Answer: you should charge a log-on fee of $2.5 to have the largest profit, which is $3345.
X=9
Y=2 i think it’s the answer
Answer:
12
Step-by-step explanation:
Multiply 80 by .15
<span>
9 to 11 = 9:11</span>
<span />If u times 2 you will get 18:22 which is equivalent to 9:11
<span>Next u could do 18:22 times 2 to get another equivalent answer to 9:11 </span>
<span /><span>You could just continue this to get more equivalent answer to 9:11</span>
<span>HOPE MINE IS THE BRAINLIEST </span>
