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Masukkan nilai x = 4 dan y = -7 :
ax + 2y - 14 = 0
4a - 14 - 14 = 0
4a - 28 = 0
4a = 28
a = 7
Persamaan garisnya :
7x + 2y - 14 = 0
Gradien :
m = -a/b
m = -7/2
m = -3,5