Answer:
6
Step-by-step explanation:
-Under point reflections, figures sizes and shapes remains unchanged.
-The dimensions of JL=[tex]L\prime J\prime[/tex]=8:
#We therefore equate to solve for x:
[tex]JL=L\prime J\prime\\\\8=2X-4\\\\2X=12\\\\X=6[/tex]
Hence, the measure of x is 6.
