Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

missashleyn

  • one year ago

If f(x) = 4x + 1 and g(x) = x2 – 2x + 1, what is f(g(x)) ? 4x2 – 8x + 5 4x2 + 2x + 2 x2 + 2x + 2 x2 – 2x + 2

  • This Question is Closed
  1. theLiminator
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    4(x^2-2x+1)+1=f(g(x)) 4x^2-8x+4+1=f(g(x)) f(g(x))=4x^2-8x+5

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

    Sub g(x) into wherever x is inside f(x)

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

    That makes no sense to me lol is it the first answer?

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

    yeah

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

    Thank you!

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

    let's call g(x) something you are more familiar with, like g(x) = y, then sub that into f(g(x)) Which gives you f(y)=4x+1

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

    Since you substitute whatever is inside f() into any x you have in your function, you'll get 4(y)+1=f(y) Then just resub y=g(x) = x^2 – 2x + 1

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

    Search OpenStudy
    • 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.