Answer:
Yes, JK and LN have the same midpoint
Step-by-step explanation:
In order to demonstrate that JK and LN have the same midpoint, we have to find their midpoints
The coordinates of the midpoint of a segment are:
Where
are the coordinates of the initial point and
the coordinates of the endpoint
Step 1: Find the JK's midpoint
For this segment:
J(-2,3); then
and 
K(6,5); then
and 
The coordinates of the midpoint are:
Step 2: Find the LN's midpoint
For this segment:
L(0,7); then
and 
N(4,1); then
and 
The coordinates of the midpoint are:
Therefore JK's Midpoint and LN's Midpoint are the same