A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Water coming out from a fountain is modeled by the function f(x) = -x2 + 5x + 4 where f(x) represents the height, in feet, of the water from the fountain at different times x, in seconds. What does the average rate of change of f(x) from x = 3 to x = 5 represent? The water falls down with an average speed of 3 feet per second from 3 seconds to 5 seconds. The water falls down with an average speed of 5 feet per second from 3 seconds to 5 seconds. The water travels an average distance of 3 feet from 3 seconds to 5 seconds. The water travels an average distance of 5 feet from 3 seconds

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

    hint: x is the number of seconds average rate of change = speed

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

    the next step is to calculate the average speed from x = 3 to x = 5 using the formula [f(5)-f(3)] / (5-3)

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

    So do i plug it in, into f(x) = -x2 + 5x + 4 or?????

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

    yes

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

    so I do 5-3. Which is 2 so I plug 2 into everything?

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

    no, not quite... f(5) - f(3) = ?

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

    f(2)

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

    nope, not quite... f(x) = -x^2 + 5x + 4 f(5) = ?

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

    Im really confused?

  10. 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.