Choose the system of equations which matches the following graph: (5 points)

a. a line includes points 0 comma 0 and negative 1 comma 2.

b. A line includes points 2 comma 3 and 1 comma negative 2

- 5x − y = 7 2x − y = 0
- 5x − y = 7 2x + y = 0
- 5x + y = −7 2x + y = 0
- 5x + y = −7 2x − y = 0