In the xy-coordinate system, if (a,b) and (a + 3, b + k) are two points on the line defined by the equation x = 3y - 7, then k = ?
A) 9
B) 3
C) 7/3
D) 1
E) 1/3
OA - D
A) 9
B) 3
C) 7/3
D) 1
E) 1/3
OA - D
