Which kinds of transactions show quadratic signature-hashing scaling? It has been stated:


  A major problem with simple approaches to increasing the Bitcoin blocksize is that for certain transactions, signature-hashing scales quadratically rather than linearly.


https://bitcoincore.org/en/2016/01/26/segwit-benefits/#linear-scaling-of-sighash-operations

What are some examples of transactions with this behavior, and what do they have in common?

Does a simple one-input-two-output Alice-pays-Bob transaction show quadratic signature-hashing scaling?
Quadratic means that something grows as a square function of something else. If you're just talking about a single transaction, there is nothing that changes.

The quadratic hashing issue is that the amount of data to hash to compute or verify signatures grows as a square of the number of non-segwit inputs.