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katen-ka-za [31]
3 years ago
13

F(x) = 3x + 9, find f^-1(x)

Mathematics
1 answer:
lianna [129]3 years ago
6 0

Answer:

y=x-9/3

Step-by-step explanation:

f(x)=3x+9

let f(x)=y

y=3x+9

change position of x & y

x=3y+9

rearrange:

x-9=3y

y=x-9/3

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