Is the function one-to-one? Provide the inverse function if the inverse function exists. {(7,4),(4,7).(-5, -5), (3, 2)}

Yes, because each x value has a corresponding y value.

Your just splitting the number to things that when multiplied make that number.
So when you have 36 you can split it to 2 and 18. Then split 18 in 2 and 9. Then split 9 into 3 and 3. So you split all the numbers till nothing multiplies to them. Message me back for more help if needed.
Hope this helps