Can someone correct me if im wrong ?

the answer is D I'm pretty sure!!

Yes you are correct because the only thing you need to do to get the reflexive in this problem is to make the y axis the opposite of what it normally is like for example the reflexive of (1,2) would be (-1,2) when it is going horizontal but when it is not it will be the x axis reversed.

We let x 1 = 13, y 1 = 8, x 2 = 9, y 2 = 6, x 3 = 4, y 3 = 2, x 4 = 8, y 4 = 4 and the area is given by The absolute value of the cross product of two vectors a →, b → ∈ R 3 spanning the parallelogram is its area:

Step-by-step explanation: