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Verified answer
PerSaMaaN GariSg1 garis melalui (-2,0) dan (0,-4)
g1 ≡ 4x + 2y = 8
atau 2x + y = 4
g2 garis tegak lurus g1 melalui (-2,0)
x - 2y = -2 - 2(0)
x - 2y = - 2
titik potong g2 dengan sumbu y, x = 0
0 - 2y = - 2
y = 1
titik potong (0, 1)
g3 garis tegak lurus g2 melalui (0,1)
g3 ≡ 2x + y = 2(0) + 1(1)
2x + y = 1