Select a counterexample to show that the given statement is false, or state that there is no counter example or we wouldn't use a counter example.

Question

Conjecture: If $a$ and $b$ are two integers such that $\frac ab$, then $\frac ba$.

a. $a = 2, b = 2$

b. $a = 2, b = 4$

c. There is no counter- example.

d. We would not use a counter example in this case.

Answer 1

The following is the answer: b. a = 2, b = 4