Give me a second let me try to work them out for you .
All you have to do is take 45$ and divide it by 1/3 then when you get that answer divide it by 1/4 to get your answer. So I believe your answer will be less than a dollar.
Answer:
The answer should be (5.5,-4)
(x − 8)(y − 4) = 50, so y = 4 + 50
x−8
. Then
A(x) = x
4 + 50
x − 8
x > 8.
A
0
(x) = 4 −
400
(x − 8)2
, so A
0
(x) = 0 gives x = 18.
A
00(x) = 800
(x − 8)3
> 0
so the function is concave up, so x = 18 is the absolute minimum. When x = 18, y = 9.
