Choose the system of equations that matches the following graph: picture of coordinate plane with line y equals negative 5 halves x minus 7 and line y equals 7x minus 7. they intersect at 0, negative 7 a. 5x + 2y = −14 7x + y = 7 b. 5x + 2y = −14 7x − y = 7 c 5x − 2y = −14 7x + y = 7 d. 5x − 2y = −14 7x − y = 7