J josh123 Junior Member Joined Oct 5, 2005 Messages 52 Feb 1, 2006 #1 I know this is probably easy but I am not getting it. Suppose that the total profit in hundreds of dollars from selling x items is given by P(x)=-x^2 + 6x -7. Find the marginal profit at x = 6.
I know this is probably easy but I am not getting it. Suppose that the total profit in hundreds of dollars from selling x items is given by P(x)=-x^2 + 6x -7. Find the marginal profit at x = 6.
pka Elite Member Joined Jan 29, 2005 Messages 11,978 Feb 1, 2006 #2 Marginal profit is the derivative of profit. Thus find P’(6).
D douchey New member Joined Feb 1, 2006 Messages 6 Feb 1, 2006 #3 Hey Josh123, I did this to see if I can help and I got 600. Let me know what you get so I know if I did it right. It was good practice.
Hey Josh123, I did this to see if I can help and I got 600. Let me know what you get so I know if I did it right. It was good practice.
G Gene Senior Member Joined Oct 8, 2003 Messages 1,904 Feb 1, 2006 #5 Huh?????? p'(x)=-2x+6 Try again.
pka Elite Member Joined Jan 29, 2005 Messages 11,978 Feb 1, 2006 #8 \(\displaystyle \L p'(x) = - 2x + 6\quad \Rightarrow \quad p'(6) = - 12 + 6 = - 6\) Are you all blind? Gene and I have given you the answer.
\(\displaystyle \L p'(x) = - 2x + 6\quad \Rightarrow \quad p'(6) = - 12 + 6 = - 6\) Are you all blind? Gene and I have given you the answer.
