What Is the line of reflection between pentagons PQRST and P'Q'R'S'T' ?
A) x = 0
B) y = x
C) y = 0
D) x = 1

Answer:
A
Step-by-step explanation:
From the diagram:
The general rule of this reflection is
(x,y)→(-x,y)
and this is reflection across the y-axis. The y-axis has the equation x=0.