3 years ago

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

1 answer:

5 0

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

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