Which system of equations is represented in the graph? On a coordinate plane, a horizontal line is at y = negative 2 and another line goes through (0, negative 3) and (6, 0).

y=−2x−2y=6
y is equal to negative 2 x minus 2 y is equal to 6
y=−2x+2y=6
y is equal to negative 2 x plus 2 y is equal to 6
x=−22x−y=3
x is equal to negative 2 2 x minus y is equal to 3
x=−22x+y=−3