A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

f(x) = 4x2 + 5 Find the value of f(x) when x=2.

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

    is that 4x^2?

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

    you have to substitute the value 2 in x of the function of 4x^2 +5 :)

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

    f(x=2) = 4(2)^2 + 5 :)

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

    Yes it is sorry, typo.

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

    so then 4*2^2+5= 69

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

    check it again i got a different answer :)

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

    4*2=8*8=64+5=69

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

    I still have the same answer.

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

    \[4x^2 +5 = 4(2)^2 +5 = 4(4) +5 = 16 + 5 = 21\]

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

    Oh okay thank you. So would 21 be my answer?

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

    yes, no problem :D

  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

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.