Question

What do I need to know?

Answer 1

`-2f(x)\implies -2[\log_2(x)]\implies \log_2\left( x^(-2) \right)\implies \log_2\left( \cfrac{1}{x^2} \right)=g(x) \\\\[-0.35em] ~\dotfill\\\\ f(x-2)\implies \log_2(x-2)=j(x) \\\\[-0.35em] ~\dotfill\\\\ f(x)+2\implies \log_2(x)+2=h(x)`