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Verified answer
3x - 4y + 12 = 04y = 3x + 12
y = 3/4 x + 3
m1 = 3/4
syarat tegak lurus
m1 . m2 = -1
3/4 . m2 = -1
m2 = -4/3
persamaan garis melalui (3, 4)
y - y1 = m(x - x1)
y - 4 = -4/3(x - 3)
y - 4 = -4/3 x + 4
y = -4/3 x + 4 + 4
y = -4/3 x + 8
jawaban D