Answer:
-x + y = 2
Explanation:
Graphing a shape means all the points in the shape will give you a true answer when you put the x and y back in the equation used to graph that shape.
Let's pick a point (0,2)
x = 1
0 = 1
This is not true, so the first option is wrong.
-x + y = 2
0 + 2 = 2
2 = 2
The second option is true.
x - y = 2
0 - 2 = 2
-2 = 2
This is not true, so the thrid option is wrong.
2x + y = 3
2(0) + 2 = 3
2 = 3
This is no true, so the fourth option is wrong.