Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

mathtard

  • 3 years ago

Find the x and y intercepts f(x) = -x^2+4x+45

  • This Question is Closed
  1. Rita1975
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    X intercept means plug in f(x) = 0 and solve for x Y intercept means plug in x =0 and find f(x)

  2. LagrangeSon678
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    |dw:1314673518595:dw|

  3. satellite73
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    y intercept is the constant in this case it is (0,45)

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

    ok, so how do i get the x intercept?

  5. LagrangeSon678
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    i just got them for you

  6. LagrangeSon678
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    did you look at the drawing

  7. LagrangeSon678
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    |dw:1314673935920:dw|

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

    so 0,45 isn't correct?

  9. LagrangeSon678
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    that is the y intecept

  10. LagrangeSon678
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    the i wrote (9,0) and (-5,0) are the x intercpets

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

    ok I guess Im just confused now.

  12. LagrangeSon678
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    thats cause you need to study more

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

    I guess I do, but you are here to help people who don't get it as easily as you do right?

  14. LagrangeSon678
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    yeah i am

  15. LagrangeSon678
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 4

    here man, check this out: To find the x intercepts, set y to be 0 and factor the polynomial like i did above, then set each term to zero and solve for x. To find the y intercept, set x to be zero and evaluate

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

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

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.