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Annette [7]
3 years ago
14

Which function is the inverse of ſx) - 2x+ 3?

Mathematics
1 answer:
Sonbull [250]3 years ago
5 0

If f^{-1}(x) is the inverse of f(x), then

f\left(f^{-1}(x)\right) = x

which means

2f^{-1}(x)+3 = x

Solve for f^{-1}(x) :

2f^{-1}(x) + 3 = x \\\\ 2f^{-1}(x) = x - 3 \\\\ f^{-1}(x) = \dfrac{x-3}2 = \boxed{\dfrac12x-\dfrac32}

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