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Anna007 [38]
3 years ago
6

If f(x)=3x+9,what is f−1(x)? 

Mathematics
1 answer:
kotegsom [21]3 years ago
8 0
F inverse? then :
let's consider 3x + 9 as y.
so :
y = 3x + 9
y - 9 = 3x
x = y/3 - 3
now replace y with x and you get the inverse.
f^-1 (x) = x/3 - 3
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