Question 1128925
{{{ ( y - 7 ) / ( x - (-2) ) = 7 }}}
{{{ y - 7 = 7*( x + 2 ) }}}
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{{{ y = 7*( x + 2 ) + 7 }}}
{{{ y = 7x + 14 + 7 }}}
{{{ y = 7x + 21 }}}
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check:
Does the line go through ( -2,7 )
{{{ 7 = 7*(-2) + 21 }}}
{{{ 7 = -14 + 21 }}}
{{{ 7 = 7 }}}
OK