Question

3. Determine - f(a) for f(x) =2x/x-1 and simplify.

Answer 1

Substitute a for x

`-f\text{ (x ) = - f (a) = - }(2a)/(a-1)`

Determine - f(a) for f(x) =2x/x-1 and simplify.​

Thus, the solution becomes:

`-(2a)/(a-1)\text{ or }(2a)/(1-a)`