Answer:
The number
or
represents the change in the goalie's rating points.
Explanation:
It is given that hockey goalie loses
rating points each time his team loses.
If the team loses a game then the change in the goalie's rating points is defined as

If the team loses 8 games then the change in the goalie's rating points is defined as


It can be written as

Therefore the number
or
represents the change in the goalie's rating points.