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f(x) = 3(x – 4)

Show that ff(x) = 9x – 48

thank you

 
Guest Jun 19, 2017
edited by Guest  Jun 19, 2017
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 #1
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f(x) = 3(x – 4)

 

f [f(x)]=3 [3(x – 4) -4]

 

=3(3x-12-4)

=3(3x-16)

=9x-48

 
Melody  Jun 19, 2017

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