Pentagon ABCDE is reflected about side CD. Which of the following statements are true? Select all that apply A: side CD is parallel to EE'
B: Vertex C and Vertex C' are located at the same point
C: Vertex C is the midpoint of AA'
D: the length of AB is equal to the length A'B'

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

not sure but it may be b, as i said i'm not sure.