Line of reflection → x = 1
Step-by-step explanation:
Coordinates of B → (3, 2)
Coordinates of B' → (-1, 2)
If point B is reflected across a vertical line x = a, both the points B and B' will be equidistant from the line of reflection.
Coordinates of the midpoint of the segment joining B and B'
= ![(\frac{x_+x_2}{2},\frac{y_1+y_2}{2})](/tpl/images/1238/5484/1ee71.png)
= ![(\frac{3-1}{2},\frac{2+2}{2})](/tpl/images/1238/5484/97dfb.png)
= (1, 2)
Line of reflection will pass through this midpoint (1, 2)
Therefore, equation of the line of reflection will be,
x = 1
![Draw the line of reflection that reflects ABC onto AA'B'C'.
y
7
Pro
6-
5-
Ted
4
B'3
B
2
N
+
-7 -6
-](/tpl/images/1238/5484/b9da0.jpg)