Question 1126371
use general point-slope formula
{{{ ( y -(-8) ) / ( x - 7 ) = -6/7 }}}
{{{ y + 8 = (-6/7)*( x - 7 ) }}}
{{{ 7y + 56 = -6x + 42 }}}
{{{ 7y = -6x -14 }}}
{{{ y = (-6/7)*x - 2 }}}
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check:
( 7, -8 )
{{{ -8 = (-6/7)*7 - 2 }}}
{{{ -56 = -42 - 14 }}}
{{{ -56 = -56 }}}
OK