Find f(x) and g(x) so the function can be expressed as y = f(g(x)). y = Two divided by x squared. + 3

asked Apr 22, 2017 49.2k views

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4 votes

Hello,

g(x)=x²+3
f(x)=2/x
so f(g(x))=f(x²+3)=2/(x²+3)

Explainations:

f(y)=2/y
f(4y)=2/(4y)
f(x²)=2/x²
f(x²+3)=2/(x²+3)

Kurund Jalmi answered Apr 28, 2017

8.4k points

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