Pentagon PQRST and its reflection, pentagon P′Q′R′S′T′, are shown in the coordinate plane below:

Pentagon PQRST and pentagon P prime Q prime R prime S prime T prime on the coordinate plane with ordered pairs at P negative 4, 6, at Q negative 7, 4, at R negative 6, 1, at S negative 2, 1, at T negative 1, 4, at P prime 4, 6, at Q prime 7, 4, at R prime 6, 1, at S prime 2, 1, at T prime 1, 4.

What is the line of reflection between pentagons PQRST and P′Q′R′S′T′?

x = 0
y = x
y = 0
x = 1

The line of reflection between pentagons PQRST and P′Q′R′S′T′ is x = 0. This is because the line of reflection is the y-axis, which is represented by the equation x = 0.