Results 1 to 2 of 2

Math Help - area of curves...in a big hurry!

  1. #1
    Banned
    Joined
    Oct 2007
    Posts
    45

    area of curves...in a big hurry!

    You are given the graph below where A1 = 18 and A2 = 5. (The graph is not drawn to scale.)

    Figure 5.29
    Use Figure 5.29 to find the following values.
    (a) =
    (b) =
    (c) =
    (d) =

    can i please get some help with this...thanks

    mathaction
    Follow Math Help Forum on Facebook and Google+

  2. #2
    is up to his old tricks again! Jhevon's Avatar
    Joined
    Feb 2007
    From
    New York, USA
    Posts
    11,663
    Thanks
    3
    the integral gives the area under the curve, that is, the area between the curve and the x-axis. if the curve is below the x-axis, the integral gives the negative area. with that in mind, you should be able to follow this easily
    Quote Originally Posted by mathaction View Post
    You are given the graph below where A1 = 18 and A2 = 5. (The graph is not drawn to scale.)

    Figure 5.29
    Use Figure 5.29 to find the following values.
    (a) =
    \int_a^b f(x)~dx = A_1

    (b) =
    \int_b^c f(x)~dx = - A_2

    (c) =
    \int_a^c f(x)~dx = \int_a^b f(x)~dx + \int_b^c f(x)~dx

    (d) =
    \int_a^c f(x) = A_1 + A_2 (the absolute values flips the negative part of the graph up, so now the area for the second part is positive when given by the integral)
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Area between two curves
    Posted in the Calculus Forum
    Replies: 7
    Last Post: March 17th 2011, 04:18 PM
  2. Area between two curves
    Posted in the Calculus Forum
    Replies: 1
    Last Post: December 7th 2009, 01:34 AM
  3. Area between two curves
    Posted in the Calculus Forum
    Replies: 1
    Last Post: December 3rd 2009, 10:08 AM
  4. Area Between Two Curves
    Posted in the Calculus Forum
    Replies: 4
    Last Post: July 10th 2009, 11:38 AM
  5. Ask for help on Poisson Distribution~~~ Hurry,hurry!!!
    Posted in the Advanced Statistics Forum
    Replies: 6
    Last Post: April 25th 2009, 11:00 PM

Search Tags


/mathhelpforum @mathhelpforum