Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

katlin95

  • 3 years ago

What is the inverse of y = 3x + 9?

  • This Question is Closed
  1. Golferguy158
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    -1/3x+9

  2. katlin95
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    you guys mean y=9x+3 right?

  3. katlin95
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    A. y= 1/3x-3 B. y=9x+3 C. y=1/3x+9 D. y=-1/3x-3

  4. katlin95
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    still got y=3x+9 I think the actual answer is B

  5. katlin95
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    cause were working with "inverse"

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

    Hi friend, you just replace x by y and y by x to get the inverse function. and then solve for y . to your problem, when replace you have x= 3y + 9 ---> 3y =x-9---> y = (x -9)/3 or y = 1/3x -3 . that is inverse function of your function hope this help

  7. katlin95
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so @Hoa our answer would be y=1/3x-3

  8. Hoa
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    absolutely right. and that is the easiest way to get the inverse function

  9. katlin95
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thanks!

  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