What is the inverse of the function \(f(x) = 3x - 5\)?

Study for the Accuplacer Advanced Algebra and Functions Test. Use flashcards and multiple choice questions, each question offers hints and explanations. Ace your exam preparation!

To find the inverse of the function (f(x) = 3x - 5), we need to follow specific steps. The goal is to express (x) in terms of (y) when we set (y = f(x)).

  1. Start with the function:

[

y = 3x - 5

]

  1. Next, solve for (x) in terms of (y):
  • First, add 5 to both sides:

[

y + 5 = 3x

]

  • Then, divide both sides by 3:

[

x = \frac{y + 5}{3}

]

  1. Now, replace (y) with (x) in the expression to denote the inverse function:

[

f^{-1}(x) = \frac{x + 5}{3}

]

This result shows that the inverse of (f(x) = 3x - 5) is indeed (f^{-1}(x) = \frac{x + 5}{3}).

When looking at the other options, they do not satisfy

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy