Sunday

April 20, 2014

April 20, 2014

Posted by **Hannah** on Saturday, February 5, 2011 at 11:46am.

p(x)= 3x^2 - 5x + 2

First I plugged 5 into the equation and got 52. Then I took the derivative which is 6x -5 and plugged in 5 and got 25. 52 - 25 = 27. Is this correct?

- Math(Please check) -
**helper**, Saturday, February 5, 2011 at 12:48pmNo, you are not correct. But, you almost had it!

To compute the actual increase in profit, first plug in 5, then plug in 6. The difference between f(5) and f(6) is the actual.

p(x)= 3x^2 - 5x + 2

p(5) = 3(5)^2 - 5(5) + 2 = 52

p(6) = 3(6)^2 - 5(6) + 2 = 80

p(6) - p(5) = 80 - 52 = 28

To compute the marginal profit

dp/dx = 6x - 5

6(5) - 5 = 25

Actual - marginal = 28 - 25 = 3

Check my math

**Related Questions**

Calculus - the cost function C(q) = q3−57q2+1083q+1010 for 0 ≤ q &#...

Calc Help - Marginal Cost = 30sqroot(x+4) with fixed costs of $1000. Marginal ...

Economics - A firm uses a single plant with costs C = 160 + 16Q + .1Q2 and faces...

ECONOMICS - A firm uses a single plant with costs C= 160 +16Q +.1Q2 and faces ...

managerial economics - A firm uses a single plant with costs C= 160 +16Q +.1Q2 ...

algebra - a factory can produce two products, x and y with a profit approximated...

math - A factory can produce two products, x and y, with a profit approximated ...

Calculus - I have two problems that I can't figure out for my test review... 1. ...

math - A manufacturer can produce 8,500 units for a total profit of 47,600.00 ...

Math - A manufacturer can produce 8,500 units for a total profit of 47,600.00 ...