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Verified answer
Materi: Persamaan Garis LurusGaris memotong sb X di (-3, 0) dan sb Y (0, 5). Bentuk umum PGL adalah ax+by=c
Pertukarkan nilainya utk dijadikan koefisien
5x - 3y = 5×(-3) = -15
5x - 3y = -15.
Verified answer
Bab Persamaan GarisMatematika SMP Kelas VIII
8] (4, 1) dan (3, -2)
(y - y1)/(y2 - y1) = (x - x1)/(x2 - x1)
(y - 1)/(-2 - 1) = (x - 4)/(3 - 4)
-1 (y - 1) = -3 (x - 4)
-y + 1 = -3x + 12
y - 3x + 11 = 0
◎◎ B ◎◎
11] (0,5) dan (-3,0)
(y - y1)/(y2 - y1) = (x - x1)/(x2 - x1)
(y - 5)/(0 - 5) = (x - 0) / (-3 - 0)
-3y + 15 = -5x
5x - 3y = -15
◎◎ C ◎◎