T TinyTim New member Joined Jan 30, 2006 Messages 7 Jan 30, 2006 #1 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).
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).
U Unco Senior Member Joined Jul 21, 2005 Messages 1,134 Jan 30, 2006 #2 Can you do the differentiating: D'(p) = ? Then, D'(10) means what is D'(p) equal to when p=10.
T TinyTim New member Joined Jan 30, 2006 Messages 7 Jan 30, 2006 #3 I posted exactly what my book said
U Unco Senior Member Joined Jul 21, 2005 Messages 1,134 Jan 30, 2006 #4 I don't doubt that. Now that we've cleared that up (?), can you find D'(p)?
T TinyTim New member Joined Jan 30, 2006 Messages 7 Jan 30, 2006 #5 i got 4 but i doubt that is right
stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 16,550 Jan 30, 2006 #6 TinyTim said: i got 4 but i doubt that is right Click to expand... Please reply showing your steps, including what you got for D'(p) and how you computed D'(10). Thank you. Eliz.
TinyTim said: i got 4 but i doubt that is right Click to expand... Please reply showing your steps, including what you got for D'(p) and how you computed D'(10). Thank you. Eliz.
U Unco Senior Member Joined Jul 21, 2005 Messages 1,134 Jan 30, 2006 #7 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)?
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)?
stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 16,550 Jan 30, 2006 #9 thetomps said: I got -50 Click to expand... Please stop posting wrong answers to other students' threads. Thank you for your consideration. Eliz.
thetomps said: I got -50 Click to expand... Please stop posting wrong answers to other students' threads. Thank you for your consideration. Eliz.
