Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Esmy

  • 3 years ago

Evaluate the function for the given value of x. If you can explain how you got the answer that would be great! :D f(x) = -6x2 - 4x - 4 , x = - 2

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

    directly put x=-2 f(-2)= -6 (-2)^2 -4(-2) -4 now (-2)^2 = (-2)(-2) =4 4(-2)=-8 so, f(-2) =-6(4)-(-8)-4 =-24+8-4 i think u can solve further

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

    |dw:1348382774561:dw|

  3. Esmy
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so f( - 2) = -20

  4. hartnn
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yup.

  5. Esmy
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    the 20 has a negative sign its not positive

  6. hartnn
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes, its -20 only.

  7. Esmy
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Okay yeah I see I was like It can't be positive 20. :D

  8. jwheele1
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Do you understand?

  9. Esmy
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes I do actually thats why I was like this can't be positive 20 lol

  10. jwheele1
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok, great. Just wanted to make sure before I left this area. =)

  11. jwheele1
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I'll leave you all with this: http://www.khanacademy.org/math/algebra/quadtratics

  12. 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