Explanation:
Given y-2>1
Add 2 to both sides
y-2+2>1+2
y>3
So, the solution is:
y>3
To represent the solution on a number line, we watch out for the following features:
> means greater than; So, the arrow will point to the right
3 means that the identification line will start at 3
> also means that the the circle or dot on 3 will be opened.
See attachment for number line