TRANSFORMASI GEOMETRI 8 8 ( , ) ( , ) → ′( ′, ′) − + ( ) = ( ) ( ) = ( ) (3) − + − = + ↔ = −1; = 0 − = + ↔ = 0; = −1 −1 0 ( ) 0 −1 ′ −1 0 ( ) = ( ) ( ) ′ 0 −1 ′ −1 0 ( ) = ( ) ( ) ′ 0 −1