Question

Aki's Bicycle Designs has determined that when x hundred bicycles are built, the average cost per bicycle is given by C(x)=0.1x^2-1.8x+8.454, where C(x) is in hundreds of dollars. How many bicycles should the shop build to minimize the average cost per bicycle?

Answer 1

You need to find the minimum cost per bike, you find this at the point where the differential of the cost function per average bike is 0.

C' = 0.2x-1.8
which will be after 9 bikes

Answer 2

So the answer is 9?

Answer 3

yes

Answer 4

if this isn't a maximum in the function... of course... but I think this will be a minimum ;P

Answer 5

it said that's wrong :(

Answer 6

Are you sure you got the formula correct?

Answer 7

ill show u the Q k?

Answer 8

okay

Answer 9

Dose that help

Answer 10

srry, was texting, hang on

Answer 11

kk

Answer 12

I'm pretty sure it's still 9.... I think your teacher made an error ;P

Answer 13

oh wait x is in 100's of bikes ;P

Answer 14

the answer will be 900

Answer 15

THX ^_^