Answer:
x = 4
Step-by-step explanation:
By property of intersecting secants outside of circle.

2x+y-3z=12
2x=4z-y
x=2z-y/2
Answer:
b.
Step-by-step explanation:
those are a lot of tabs
The image of the point is still a point. The reflection point across the y-axis is (4,6)