f(x)=3x+2
g(x)=x^2
find: g(f^-1(26))
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functions: f(x)=3x+2, g(x)=x^2, find: g(f^-1(26)) 
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functions: f(x)=3x+2, g(x)=x^2, find: g(f^-1(26))
by lzayit95 on Tue Feb 14, 2012 1:28 pm
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Re: functions: f(x)=3x+2, g(x)=x^2, find: g(f^-1(26)) 
by little_dragon on Tue Feb 14, 2012 4:04 pm
lzayit95 wrote:f(x)=3x+2
g(x)=x^2
find: g(f^-1(26))
use wat they show here: http://www.purplemath.com/modules/invrsfcn.htm
f^-1(26) is x so 26=3x+2
solve for x
then plug that into g
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little_dragon - Posts: 188
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