Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

virtus

area between y=x^2 -2x -3 and y =3x-3

  • one year ago
  • one year ago

  • This Question is Closed
  1. saifoo.khan
    Best Response
    You've already chosen the best response.
    Medals 0

    Try graphing.

    • one year ago
  2. virtus
    Best Response
    You've already chosen the best response.
    Medals 1

    i did but i don't know how to calculate it

    • one year ago
  3. Hermeezey
    Best Response
    You've already chosen the best response.
    Medals 0

    Take the definite integral of one and subtract out the definite integral of the other.

    • one year ago
  4. FoolForMath
    Best Response
    You've already chosen the best response.
    Medals 0

    HINT: Area under curve, Integration.

    • one year ago
  5. saifoo.khan
    Best Response
    You've already chosen the best response.
    Medals 0

    We integrate using the limits.

    • one year ago
  6. FoolForMath
    Best Response
    You've already chosen the best response.
    Medals 0

    Nathan is your Mr Analysis, he might help you :D

    • one year ago
  7. virtus
    Best Response
    You've already chosen the best response.
    Medals 1

    LOL the i like the sarcasm fool for math

    • one year ago
  8. FoolForMath
    Best Response
    You've already chosen the best response.
    Medals 0

    Hey vitus, long time :D

    • one year ago
  9. nbouscal
    Best Response
    You've already chosen the best response.
    Medals 2

    Set the equations equal to learn where they intersect and which is above the other, then take the definite integral of the lower function subtracted from the higher function, between the limits that you found.

    • one year ago
  10. virtus
    Best Response
    You've already chosen the best response.
    Medals 1

    i mean do you have have to split it some how and then integrate

    • one year ago
  11. nbouscal
    Best Response
    You've already chosen the best response.
    Medals 2

    Graphing is a good quick way to learn the limits of integration and which equation is larger.

    • one year ago
  12. Hermeezey
    Best Response
    You've already chosen the best response.
    Medals 0

    fine the points of interception, those will be your bounds of integration.

    • one year ago
  13. virtus
    Best Response
    You've already chosen the best response.
    Medals 1

    http://www.wolframalpha.com/input/?i=area+between+y%3Dx%5E2+-2x+-3++and+y+%3D3x-3

    • one year ago
  14. virtus
    Best Response
    You've already chosen the best response.
    Medals 1

    thats how the graph looks like, how do i account for the are under the graph

    • one year ago
  15. saifoo.khan
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1338596987767:dw|

    • one year ago
  16. nbouscal
    Best Response
    You've already chosen the best response.
    Medals 2

    By looking at that graph you can see that the two functions intersect at x=0 and x=5, so those will be your limits of integration. They also show you that the linear function is above the quadratic function, so you subtract the quadratic function from the linear function, then integrate it from 0 to 5.

    • one year ago
  17. virtus
    Best Response
    You've already chosen the best response.
    Medals 1

    OHHHH is that it!!!! LOL SORRY, didn't know why i couldn't see that.

    • one year ago
  18. virtus
    Best Response
    You've already chosen the best response.
    Medals 1

    thanks =]

    • one year ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.