Systems of Equations by graphing

the solution for the system is (-2, 1) :

the solution is (8, 1) :

the solution is (4, 2) :

the solution is (0, -5) :

standard form of a linear equation : Ax + By = C

solution is (2, 2) :

2 units down and then 3 units to the right : to graph equation y = -2/3x - 4, I move ______ from y-intercept

y-intercept (0, 7) : to graph equation y = 3x + 7, I start with ______