3 years ago

If f(x) = 2/3x + 9, find f^-1(x)

Mathematics

1 answer:

Degger [83]3 years ago

5 0

Answer:

Option D

Step-by-step explanation:

<u>Given function:</u>

f(x) = 2/3x + 9

<u>Find its inverse:</u>

x = 2/3*f⁻¹(x) + 9
2/3*f⁻¹(x) = x - 9
f⁻¹(x) = 3/2(x - 9)
f⁻¹(x) = 3/2x - 27/2

Correct choice is D

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