Question: 2) If the points A( -14, 13 ), B( -2, -2 ) and C( 2, y ) are collinear, find y. 3) Given a parallelogram

2) If the points A( -14, 13 ), B( -2, -2 ) and C( 2, y ) are collinear, find y. 3) Given a parallelogram PQRS with P( -8, -4 ), Q( 5, -2 ) and S( -6, 7 ). Find the coordinates of R, and also the slope of PR. ( Modified HKCEE 1998 )
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