A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

Find the amplitude and period of the function? -5sin(4pix)

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

    So a general formula for a periodic function is as follows: \[ A\sin{2\pi f x} \] Where \(|A|\) will be the amplitude, and \(f\) will be the frequency, which is one over the period (\(P=\frac{1}{f}\)).

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

    Can you get the answer from that?

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

    I don't understand the P=1/f part?

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

    Well, P is the period. And \(f\) is the frequency. That's just saying the reciprocal of the frequency is the period.

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

    In the argument of your function you have 4*Pi*x. Your objective should be to make this match the form of 2*Pi*f*x. Then, your F is the denominator of your P=1/f.

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

    Ok, Thanks. One more y= 7sin (1/2(x+pi/3))

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

    Well, a more general form of the equation is: \[ A\sin(2\pi f x + \phi) \] This means all you have to do is multiply out the things inside the parentheses, and then fit them to find what your \(f\) is.

  8. 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.