If f(x) = 2 3 x + 9, find f−1(x). A) f−1(x) = 3x − 9 B) f−1(x) = 2 3 x + 9 C) f−1(x) = 3 2 x + 27 2 D) f−1(x) = 3 2 x − 27 2

i got 86 for this

hope this !

if you need an explanation just ask

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step-by-step explanation:

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yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;