What's the inverse of f (x) = 2x+3

Question

Mathematics

Guest

28 May, 11:06

What's the inverse of f (x) = 2x+3

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Answers (2)

Know the Answer?

Beard · Answer 1

f^-1 (x) = 1/2x + 3/2

Step-by-step explanation:

I just took a quiz and this was the right answer.

Catherine Barker · Answer 2

Answer: f-1 (y) = (y-3) / 2

Step-by-step explanation:

f (x) = 2x+3, written as a flow diagram:

2x+3

The Inverse Function goes the other way:

Inverse

So the inverse of: 2x+3 is: (y-3) / 2

The inverse is usually shown by putting a little "-1" after the function name, like this:

f-1 (y)

We say "f inverse of y"

So, the inverse of f (x) = 2x+3 is written:

f-1 (y) = (y-3) / 2