Cara dan hasil ada di lampiran
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1] Titik pusat (0,0) dan melalui titik (-3,6)(y - y1)/(y2 - y1) = (x - x1)/(x2 - x1)
(y - 0)/(6 - 0) = (x - 0)/(-3 - 0)
y/6 = x/-3
-3y = 6x
6x + 3y = 0
◎◎ dibagi 3 ◎◎
2x + y = 0
y = -2x
2] (-4, 3) dan (-4, -2)
Karena y2 = y1 = -4
Maka, persamaannya y = -4
Kelas 8 Matematika
Bab Persamaan Garis
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Cara dan hasil ada di lampiran