Question 1117665
Use the general point-slope formula
{{{ ( y - (-7) ) / ( x - (-8) ) = 5/4 }}}
{{{ ( y + 7 ) / ( x + 8 ) = 5/4 }}}
{{{ 4*( y + 7 ) = 5*( x + 8 ) }}}
{{{ 4y + 28 = 5x + 40 }}}
{{{ 4y = 5x + 12 }}}
{{{ y = (5/4)*x + 3 }}}
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check:
does it go through ( -8, -7 )?
{{{ -7 = (5/4)*(-8) + 3 }}}
{{{ -7 = -10 + 3 }}}
{{{ -7 = -7 }}}
OK