Question 1093734
Let the other endpoint be ( x1 , y1 )
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The x-coordinate of the midpoint is:
{{{ ( 2 + x[1] )/ 2 = 5 }}}
{{{ 2 + x[1] = 10 }}}
{{{ x[1] = 8 }}}
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The y-coordinate of the midpoint is:
{{{ ( 5 + y[1] ) / 2 = 1 }}}
{{{ 5 + y[1] = 2 }}}
{{{ y[1] = -3 }}}
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The other endpoint is ( 8, -3 )
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check the math