Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
davidosterberg1
Lv 6
davidosterberg1 asked in Science & MathematicsMathematics · 1 decade ago

What is the inverse of the function F(x) = (2+7x) / (3-4X)?

Update:

Thanks ale-23. You dropped the 7 in step 3 but your solution steps make perfect sense.

1 Answer

Relevance
  • ale_23
    Lv 7
    1 decade ago
    Favorite Answer

    F(x) = (2+7x) / (3-4X)

    y = (2+7x) / (3-4X)

    y(3-4X) = (2+7x)

    3y - 4xy = 2 + x

    3y - 2 = x + 4xy

    3y - 2 = x(1 + 4y)

    (3y - 2) / (1 + 4y) = x

    --> f-1(x) = (3x - 2) / (1 + 4x)

    Alejandra

Still have questions? Get your answers by asking now.