Point B is located at point (4, -2)
Put them into y=mx+b
y=1/3x -1
y=2/3x-4
Graph them. Where they touch is your answer. No touch? No solution. Same line? Infinite solutions.
Second set: Same thing.
Solution to first set is (9,2)
Well since two solid numbers cant make 7 I would do 3.5 x 7
