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MatematikaMateri : Persamaan garis lurus
Persamaan umumnya:
y = mx + c
Penjelasan:
Gradien garis lurus dinyatakan dengan "m"
Penyelesaian:
a). 2y = 3x + 6
2y = 3x + 6
y = (3/2)x + 6/2
y = (3/2)x + 3
m = 3/2
Gradien garisnya adalah 3/2
b). 2x + 3y = 4
2x + 3y = 4
3y = -2x + 4
y = (-2/3)x + 4/3
m = -2/3
Gradien garisnya adalah -2/3
c). -5x + 2y + 6 = 0
-5x + 2y + 6 = 0
2y = 5x + 6
y = (5/2)x + 6/2
y = (5/2)x + 3
m = 5/2
Gradien garisnya adalah 5/2
d). 2x - 3y + 4 = 0
2x - 3y + 4 = 0
-3y = -2x - 4
3y = 2x + 4
y = (2/3)x + 4/3
m = 2/3
Gradien garisnya adalah 2/3
e). -3x - 4y - 8 = 0
-3x - 4y - 8 = 0
-4y = 3x + 8
4y = -3x - 8
y = (-3/4)x - 8/4
y = (-3/4)x - 2
m = -3/4
Gradien garisnya adalah -3/4