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y = (2/5)x - 8/5
m = 2/5
Persamaan garisnya:
y - 2 = (2/5)(x - 7)
5y - 10 = 2x - 14
2x - 5y - 4 = 0
5y = 2x - 8
y =
y = -
m =
sejajar dg garis 2x - 5y = 8, maka = =
Persamaan grs dg gradien dan melalui titik (7, 2):
y - = m(x - )
y - 2 = (x - 7)
y - 2 = -
y - = 2 -
y - = -
y - =