Question

Select a counter-example that makes the conclusion false. 7 - 3 = 4, 8 - 5 = 3, 9 - 8 = 1 Conclusion: the difference of two positive numbers is always positive. Counterexample:

Answer 1

Explanation:

Counterexample: Let the two positive numbers 5 and 9.

The difference between them is 9 - 5 = 4. ( which is a positive number)

However, the conclusion states that the difference of two positive numbers is always positive, but this counterexample shows that it is not true since the difference of 9 and 5 is positive, but the conclusion states that it should always be positive.

Therefore, this counterexample makes the conclusion false.