
transformasi
Presentation
•
Mathematics
•
9th Grade
•
Hard
Ismen 82
Used 14+ times
FREE Resource
14 Slides • 0 Questions
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TRANSFORMASI
ISTIADAH S.Pd.i
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TUJUAN BELAJAR TRANSFORMASI
Siswa dapat menjelaskan konsep dan pengertian translasi
Siswa dapat menentukan menentukan sifat-sifat translasi
Siswa dapat menentukan bayangan suatu objek setelah ditranslasi
Melalui metode diskusi dan saling berbagi hasil pengamatan
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TRANSFORMASI (dalam matematika) ADALAH
perubahan posisi (perpindahan) dari suatu posisi awal (x , y) ke posisi lain (x’ , y’)
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MACAM-MACAM TRANSFORMASI
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Translasi (Pergeseran)
hanya berubah posisinya saja
Ukurannya mah tetap saja sama
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Tentukan bayangan dari titik A (2,4) pada translasi (3,5)
Ingat rumus untuk mengetahui hasil translasi adalah A (x,y) ———> A'( x + a , y+ b)
Masukkan semua angka sesuai rumus yaitu : (x,y) = (2,4) ; (a,b) = (3,5)
A’ (x’,y’) = {(x+a), (y+b)}
A’ (x’,y’) = {(2+3), (4+5)}
A’ (x’,y’) = (5,9)
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T (3,4)
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REFLEKSI/PENCERMINAN
Suatu objek yang mengalami refleksi akan mempunyai bayangan benda yang dihasilkan oleh suatu cermin
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Rumus Umum Refleksi
Pencerminan terhadap sumbu -x : (x,y) → (x, -y)
Pencerminan terhadap sumbu -y : (x,y) → (-x, y)
Pencerminan terhadap garis y = x : (x,y) → (y,x)
Pencerminan terhadap garis y = x : (x,y) → (-y, -x)
Pencerminan terhadap garis x = h : (x,y) → (2h -x,y)
Pencerminan terhadap garis y = k : (x,y) → (x, 2k – y)
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TRANSFORMASI
ISTIADAH S.Pd.i
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