Let f(x)=x/(x-6). Find a function y=g(x) so that (fog)(x)=2x.

asked Dec 19, 2023 76.7k views

5 votes

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5 votes

solve as a simultaneous equation maybe?

f(x) + g(x) = 2x or x/(x-6) + y =2x

and then solve so it becomes 2x^2 + 5x =y

then factorise into brackets or use quadratic formula

Explanation:

Victor Grazi answered Dec 25, 2023

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