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Mathematics 9 Online
OpenStudy (olivya999):

Solve for g(f(3))

rebeccaxhawaii (rebeccaxhawaii):

what are the equations

OpenStudy (olivya999):

\[f(x)= 2x+1\] \[g(x)= \frac{ 3x-1 }{ 2 }\]

rebeccaxhawaii (rebeccaxhawaii):

so replace x with 3 in the f(x) equation

rebeccaxhawaii (rebeccaxhawaii):

what do you get?

OpenStudy (olivya999):

A) 5 B) 7 C) 9 D) 10

OpenStudy (olivya999):

f(x)= 7 @rebeccaxhawaii

OpenStudy (olivya999):

and g(x)= 4

rebeccaxhawaii (rebeccaxhawaii):

yes so f(x)=7 then we will plug in 7 for x in the g(x) equation

OpenStudy (olivya999):

oh so g(x)=10

rebeccaxhawaii (rebeccaxhawaii):

yes because you solve for f(x) first then plug in what you got for f(x) into the g(x) equation to get the final answer

OpenStudy (olivya999):

so the answer is 10?

rebeccaxhawaii (rebeccaxhawaii):

g(f(3))=10 yes

OpenStudy (olivya999):

thank you

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