Answer:
The lines are perpendicular.
Answer:
-2/3
Step-by-step explanation:
2x + 3y = - 3 re-arrange to y = mx+b form: slope of this line will be 'm'
y = -2/3 x -1 slope = -2/3 parallel slope is the same
Graph a... you go down on the y axis 3, and then using the rise over run method, you go up 3, over 4
The formula of a midpoint of AB:

We have:
G(b; 0); F(3b; 2b)
substitute:

Answer: (2b, b)
Just divide 30 by 6 and you get b=5