Calculus Question - How to find the marginal revenue?

The marginal revenue function is the differential of the total revenue function. |

For the total revenue function | | | |

| TR = | 500Q + 3Q^{2} | | |

where Q is the quantity produced, find the value of the marginal revenue (MR) when |

Q equals 71. |
| Give answer to nearest integer value. |

Can someone please show me how to answer this question? Thanks very much

Re: Calculus Question - How to find the marginal revenue?

you first ... what is the derivative of $\displaystyle R = 500Q + 3Q^2$ ?

Re: Calculus Question - How to find the marginal revenue?

Quote:

Originally Posted by

**skeeter** you first ... what is the derivative of $\displaystyle R = 500Q + 3Q^2$ ?

I don't know how to do that, would you mind showing me?

Re: Calculus Question - How to find the marginal revenue?

When a person posts a problem, we assume they have the basic knowledge to at least attempt to work it out. I can tell you that this is a very basic derivative. I recommend you research how ... here's a link to get you started.

http://evlm.stuba.sk/~partner7/DBfil...rentiation.pdf

Re: Calculus Question - How to find the marginal revenue?

okay so

$\displaystyle \frac{dt}{dq} = 500 + 6Q $

Re: Calculus Question - How to find the marginal revenue?

can you show me what to do next?

Re: Calculus Question - How to find the marginal revenue?

Quote:

Originally Posted by

**Arivioz** $\displaystyle {\color{red}\frac{dR}{dQ}} = 500 + 6Q $

correction ...

... now sub in Q = 71 to find the marginal revenue.

Re: Calculus Question - How to find the marginal revenue?

okay so the answer is 926?