Question 1027082
The points are:
( -3, -5 )
( -1, -4 )
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Use the general point-slope formula
{{{ ( y -(-4) ) / ( x -(-1) ) = ( -5 -(-4) ) / (  -3 -(-1) ) }}}
{{{ ( y -(-4) ) / ( x -(-1) ) = ( -1 ) / ( -2 ) }}}
{{{ ( y + 4 ) / ( x + 1 ) = 1/2 }}}
{{{ y + 4 = (1/2)*( x + 1 ) }}}
{{{ 2y + 8 = x + 1 }}}
{{{ 2y = x - 7 }}}
{{{ y = (1/2)*x - 7/2 }}}
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check:
( -3, -5 )
{{{ -5 = (1/2)*(-3) - 7/2 }}}
{{{ -5*2 = -3 - 7 }}}
{{{ -10 = -10 }}}
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( -1, -4 )
{{{-4 = (1/2)*(-1) - 7/2 }}}
{{{ -8 = -1 - 7 }}}
{{{ -8 = -8 }}}
OK