Soal Transformasi Geometri Kelas 9

(x,y)→(x,−y)open paren x comma y close paren right arrow open paren x comma negative y close paren

y′=2(3)−6=6−6=0y prime equals 2 open paren 3 close paren minus 6 equals 6 minus 6 equals 0 Bayangan titik 4. Hitung Rotasi 90∘90 raised to the composed with power diputar sebesar 90∘90 raised to the composed with power berlawanan arah jarum jam dengan pusat . Tentukan koordinat bayangannya. 1. Tukar dan Balik Tanda Rotasi 90∘90 raised to the composed with power x′=-4x prime equals negative 4 y′=-3y prime equals negative 3 2. Tentukan Hasil Bayangan titik 5. Cari Dilatasi Skala Negatif Tentukan bayangan titik oleh dilatasi dengan pusat dan faktor skala Soal Transformasi Geometri Kelas 9

| Axis | Result ( (x', y') ) | Example ( (2, 3) ) → | | :--- | :--- | :--- | | X-axis | ( (x, -y) ) | ( (2, -3) ) | | Y-axis | ( (-x, y) ) | ( (-2, 3) ) | | Line ( y = x ) | ( (y, x) ) | ( (3, 2) ) | | Line ( y = -x ) | ( (-y, -x) ) | ( (-3, -2) ) | | Line ( x = h ) | ( (2h - x, y) ) | ( h=1 → (0,3) ) | | Line ( y = k ) | ( (x, 2k - y) ) | ( k=2 → (2,1) ) | (x,y)→(x,−y)open paren x comma y close paren right