Which represents the inverse of the function f (x) = 2x+1?

Question

Mathematics

Josiah Good

9 November, 08:58

Which represents the inverse of the function f (x) = 2x+1?

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Answers (1)

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Darien Cox · Answer 1

f (x) = 2x + 1

To find the inverse, f^-1 (x), of the function:

Put the function as an equation:

y = 2x + 1

Then move x to the left and y to the right;

x = 2y + 1

Then solve for y;

y = x/2 - 1/2

f^-1 (x) = y

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