A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 4 years ago

What is the domain and range of this function? y=-4((pi/4)x)-3

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

    Domain: (-inf,inf) Range: [-7,1]

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

    correct?

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

    \[y=-4((\frac{\pi}{4}x))-3\]

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

    yes, that is the correct function.

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

    If the domain is all real numbers, with which I agree, why is the range limited?

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

    That simplifies to -pi(x)-3

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

    The range is limited because the amplitude is 4.

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

    What are you talking about? pi is approximately 3.14 so the equation is y=-3.14x-3

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

    A linear equation with slope -3.14 and y intercept -3

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

    That's why I retyped the equation for verification. It made no sense to write it that way.

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

    Oh, i wrote down the wrong equation. My mistake.

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

    y=−4cos((π4x))−3

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

    Thanks for helping me catch that. Now will you agree that the range is correct and that the amplitude is 4?

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

    The amplitude is 4. The range is -7 to 1

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

    Thanks

  16. 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.