maria3798 maria3798

20-06-2020
Mathematics

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Guided Practice
Show that f and g are inverse functions.
3A. f(x) = 18 – 3x, g(x) = 6 - x/3

F[g(x)] and G[f(x)]

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AnnaChen AnnaChen

20-06-2020

F(x) and g(x) are basically =y
So if u sub f(x) and g(x) with y

Y= 18-3x
-18= -3x
X= 6
f(x) = 6

Y = 6- x/3
-6=x/3
X=18

G(x)= 18

The answer is:

f(x) = 6
g(x)=18

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