Given f (x) = the quantity of 2x minus 2 divided by 4, solve for f-1 (3).

Question

Mathematics

Sebastian Pollard

1 November, 14:31

Given f (x) = the quantity of 2x minus 2 divided by 4, solve for f-1 (3).

+1

Answers (1)

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Emilia Arias · Answer 1

Given: f (x) = (2x-2) / 4

find f^-1 (3) ?

we need to find the inverse of f (x), so

x = (2y-2) / 4

2y-2=4x

y-1=2x

y=2x+1

so, then f^-1 (x) = 2x+1

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

=6+1

=7

so, the answer is 7