Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

5369855 Group Title

Evaluate the expression and interpret the work in terms of the context: f(3) Time: 3 Velocity: 96

  • 3 years ago
  • 3 years ago

  • This Question is Closed
  1. salindger Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    what expression?

    • 3 years ago
  2. 5369855 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    I need to find the inverse of f(3). The original function is below that, where the time is 3 and velocity of 96.

    • 3 years ago
  3. salindger Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ... so, at time = 3, the velocity is 96? ....so f(3) = 96? inverse would be... f'(96) = 3?

    • 3 years ago
  4. 5369855 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Is that how it works? It's that simple???

    • 3 years ago
  5. 5369855 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    or is it t=f^-1(v)?

    • 3 years ago
  6. salindger Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes, that is the correct notation. I was being lazy. inverses is just flipping the x and y. (easy answer)

    • 3 years ago
  7. salindger Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    if I plug in 3 to get 96...then when i find the inverse function (i.e. solve for 3, I need to plug in 96 to get back to 3.)

    • 3 years ago
  8. 5369855 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    or would it be 3^-1(96)?

    • 3 years ago
  9. salindger Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    f isn't defined (no equation-unless you're hiding it from me.) all we know is when 3 is the input, the output is 96. the inverse f would use the 96 as the input to get 3 as the output. So... f(3) = 96 \[f ^{-1}(96) = 3\]

    • 3 years ago
  10. 5369855 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Oh, the equation might b3e v=f(t)=32t so the inverse of that would be t=f^-1(v)

    • 3 years ago
  11. salindger Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    no. v = 32t (swap v and t) t = 32v (solve for v) t/32 = v therefore, \[f ^{-1}(t) = t/32\]

    • 3 years ago
  12. 5369855 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ok thanks!

    • 3 years ago
    • Attachments:

See more questions >>>

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.