What is output? x=-2 y=-3 print (x*y+2)

To display data in a certain manner like alphabetical order is called

What are compression artifacts? 1) visible defects in the picture caused by the nature of the compression algorithm. 2) numbers that tell a web server how much to compress a picture for faster transmission. 3) invisible defects in the picture preserved by lossless compression. 4) numbers that tell a photo editing program how much to compress a picture for faster transmission.

All of the following are characteristics that must be contained in any knowledge representation scheme except