Year 12s: what will be the first way you research your future options? >>

Need Urgent Help

likepeas

I got 3 questions which have been bugging me the whole night.

Thanks in advance. :redface:

Reply 1

steve2005

Original post by likepeas

I got 3 questions which have been bugging me the whole night.

Thanks in advance. :redface:

For the first one I would differentiate and equate to zero, then solve. It looks as if you have tried to solve the cost equation as a quadratic. That won't work as it assumes the cost is zero. i.e you ax^2 +bx+c =0 The cost is not zero, so it is no good solving that equation.