If M is the midpoint of AB, then M bisects AB

Answer 1

The inverse of P → Q is not P → not Q. The result may or may not be true.

You got this.

Answer 2

For a general logical statement:

If A, then B

The inverse is:

If not A, then not B

In your problem A = M is the midpoint of AB and B = M bisects AB. Can you construct the inverse?