Question

prove that g(x)=1/x^6 is not-one-to one? How do I isolate the x?

Answer 1

you don't have to

Answer 2

not one to one since all negative values plugged into x yeild the same value as if the positive was plugged in

Answer 3

just need a counterexample

Answer 4

here is my proof
\[f(2)=f(-2)=\frac{1}{64}\] qed as we say

Answer 5

Oh I see thanks! I was stuck on isolating that x..because the last problems I was doing were asking me to prove a function IS one-to-one by isolating x. Thanks again.