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Verified answer
Bab Persamaan GarisMatematika SMP Kelas VIII
y = mx + c
y2 = 3x - 3
maka, m2 = 3
y1 = mx + 2
maka, akan akan saling berpotongan tegak lurus jika
m1 x m2 = -1
m x 3 = -1
m1 = -1/3
jawabannya E