Materi : Translasi Geometri
Titik A( 3,5 )
A( 3,5 )⇒T( 6,-7 )⇒A'(3+6,5-7) = A'( 9,-2 )
A( 3,5 )⇒R[ 0,180° ]⇒A'( -5,-3 )
A( 3,5 )⇒My = 4⇒A'( 3,2(4)-5) = A'( 3,3 )
A( 3,5 )⇒D[ K( 2,1 ),6 ]⇒A'( x',y' ) = A'( 8,25 )
------
x' = a + k( x - a )
x' = 2 + 6( 3 - 2 )
x' = 2 + 6(1)
x' = 2 + 6
x' = 8
y' = b + k( y - b )
y' = 1 + 6( 5 - 1 )
y' = 1 + 6(4)
y' = 1 + 24
y' = 25
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Verified answer
Materi : Translasi Geometri
Titik A( 3,5 )
a. Ditranslasi sejauh (6,-7)
A( 3,5 )⇒T( 6,-7 )⇒A'(3+6,5-7) = A'( 9,-2 )
b. dirotasi 180° titik pusat
A( 3,5 )⇒R[ 0,180° ]⇒A'( -5,-3 )
c. dicerminkan garis y=4
A( 3,5 )⇒My = 4⇒A'( 3,2(4)-5) = A'( 3,3 )
d. didilatasi titik pusat K(2,1) factor skala 6
A( 3,5 )⇒D[ K( 2,1 ),6 ]⇒A'( x',y' ) = A'( 8,25 )
------
x' = a + k( x - a )
x' = 2 + 6( 3 - 2 )
x' = 2 + 6(1)
x' = 2 + 6
x' = 8
------
y' = b + k( y - b )
y' = 1 + 6( 5 - 1 )
y' = 1 + 6(4)
y' = 1 + 24
y' = 25
------
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