Question 307997
Use the point-slope form of a line,
{{{y-yp=m(x-xp)}}}
{{{y-(-7)=3(x-(-5))}}}
{{{y+7=3(x+5)}}}
{{{y+7=3x+15}}}
{{{y=3x+8}}}
{{{ drawing( 300, 300, -10, 10, -10, 10, grid(1), circle(-5,-7,.4),graph( 300, 300, -10, 10, -10, 10, 3x+8)) }}}