Question

2 fill in the blank 1 point
identify the line of reflection for the image shown:
3 fill in the blank 1 point

Explanation:

A reflection line is the perpendicular bisector of the segment connecting each original point and its image. Looking at the coordinates (e.g., point $C$ is at $(-1,0)$ and $C'$ is at $(1,0)$; point $A$ is at $(-4,1)$ and $A'$ is at $(4,1)$), the midpoint between each pair lies on the line $x=0$ (the y-axis), and the segment connecting each pair is horizontal, so the perpendicular bisector is vertical, which is the y-axis.

Answer:

y (the line $x=0$ / y-axis)