If f(x)=x^2 + 1, then f(2/x) =???

Question

16. Please help, thanks!

Answer 1

Hi,

You will plug in 2/x for x in the function, f(x), then simplify;

 

f(2/x) = (2/x)² +1

  

          = 4/x² + 1; This is your answer.

 

I think this is helpful.

SN