Question 84568
how do i find the other endpoint when the other Endpoint (5,0) and midpoint    (-3,-5)?
The midpoint formula is: ((x1+x2)/2,(y1+y2)/2)
For the x part: 
{{{(5+x)/2=-3}}}
{{{2(5+x)/2=-3*2}}}
{{{5+x=-6}}}
{{{-5+5+x=-6-5}}}
{{{x=-11}}}
For the y part:
{{{(0+y)/2=-5}}}
{{{y/2=-5}}}
{{{2y/2=-5*2}}}
{{{y=-10}}}
Therefore the other endpoint is: (x,y)=(-11,-10)
Happy Calculating!!!!