Question 846005
1) Let the coordinates for N be (a,b). The coordinates of L are (-2,8). 
Therefore coordinates of the mid point are: ({{{(a-2)/2}}},{{{(b+8)/2}}}).
Given that coordinates of the mid-point M are (6,-3).
So, we have


{{{(a-2)/2=6}}}
{{{a-2=6*2=12}}}
{{{a=12+2=14}}}


{{{(b+8)/2=-3}}}
{{{b+8=-3*2=-6}}}
{{{b=-6-8=-14}}}


So the coordinates of the other end are (14, -14).



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