A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

Find the X interceps using the factor method, write the equation of the aqis of symmetry.vertex,state if its max or min............O.o I DONT UNDERSTAND

  • This Question is Closed
  1. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    -x^2+3x+10

  2. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    -x^2+5x-2x+10=(5-x)(x+2)

  3. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    therefore x-intercepts are 5 and -2

  4. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    In step 2 where did u get 5-x and x+2 from?

  5. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    -x^2+5x-2x+10=x(5-x)+2(5-x)=(5-x)(x+2)

  6. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    understood?

  7. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    not even a little bit......

  8. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i factorized -x^2+3x+10=(5-x)(x+2). Suppose ur given function is y. then at x-intercepts y=0...therefore (5-x)(x+2)=0..i.e. x=5,-2 :)

  9. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    how do you factorize?????????

  10. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok...split 3x as 5x-2x then -x^2+5x-2x+10

  11. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    or u can think it of as: put x=-2 and x=5 in ur equation ..u get zero for these two values..so x-intercepts are -2 and 5..

  12. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I think you should learn factorizing before doing coordinate geometry :)

  13. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok i got it thank you

  14. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    now how do u find vertex?

  15. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    r u sure u want to proceed..cause u need great deal of factoring!!

  16. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    take y=-x^2+3x+10 then u get by arranging and factoring (x-3/2)^2=4(-1/4)(y-49/4)

  17. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Phil7780 go to my youtbe link on factorising quadratics nd let me know if it helps. http://www.youtube.com/watch?v=PYTo3b5JO7Y

  18. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.