Answer:
assuming each unit on the graph is zero,
1) x=-4
2) y=6
3) x=2
4) y=-1
Step-by-step explanation:
all vertical lines have the equation x=a, and all horizontal lines have the equation y=a. to find a in a horizontal line the y values in the points in the line are all a. to find a in a vertical line the x values are all a.
