Help

[TinyTim]

I am stuck on this problem. I dont know where to go or what to do or where to start.

THE PROBLEM:

Suppose the demand for a certain item is given by D(p)= -3p^2 + 6p + 4, where p represents the price of the item. Find D'(10).

 

[Unco]

Can you do the differentiating:

D'(p) = ?


Then, D'(10) means what is D'(p) equal to when p=10.

 

[TinyTim]

I posted exactly what my book said

 

[Unco]

I don't doubt that. Now that we've cleared that up (?), can you find D'(p)?

 

[TinyTim]

i got 4 but i doubt that is right

 

[stapel]

i got 4 but i doubt that is right

Please reply showing your steps, including what you got for D'(p) and how you computed D'(10).

Thank you.

Eliz.

 

[Unco]

I'm not going to play the guess and check game.

Show your work. What did you get for D'(p)?

What did you get when you plugged p=10 into D'(p)?

 

[thetomps]

I got -50

 

[stapel]

I got -50

Please stop posting wrong answers to other students' threads.

Thank you for your consideration.

Eliz.