» Menentukan gradien 1 (m1)
m1 = -2/5
» Menentukan gradien 2 (m2)
m1 dan m2 tegak lurus, sehingga:
m1 x m2 = -1
-2/5 x m2 = -1
m2 = -1 x -5/2
m2 = 5/2
» Persamaan garis
y - y1 = m (x - x1)
y - 3 = 5/2 (x - 2)
2 (y - 3) = 5 (x - 2)
2y - 6 = 5x - 10
2y - 5x = -10 + 6
2y - 5x = -4
5x - 2y = 4
Jadi jawabannya B
maaf bila ada kesalahan
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» Menentukan gradien 1 (m1)
m1 = -2/5
» Menentukan gradien 2 (m2)
m1 dan m2 tegak lurus, sehingga:
m1 x m2 = -1
-2/5 x m2 = -1
m2 = -1 x -5/2
m2 = 5/2
» Persamaan garis
y - y1 = m (x - x1)
y - 3 = 5/2 (x - 2)
2 (y - 3) = 5 (x - 2)
2y - 6 = 5x - 10
2y - 5x = -10 + 6
2y - 5x = -4
5x - 2y = 4
Jadi jawabannya B
maaf bila ada kesalahan