The number sentence 4×6=6×4 is what property

Whats the name of the vertical axis

The dolphins at the webster are fed 1/2 of a bucket of fish each day the sea otters are fed 1/2 as much fish as the dolphins how many buckets of fish are the sea fed each day? simplify you answer and write it as a proper fraction or as a whole or mixed number

Write an equation for the function that includes the points (2,100)and (3,100)