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2x + 5y = 10
5y = -2x + 10
y = -2/5x + 2
m = -2/5
Jawaban soal b :
6x - 2y - 12 = 0
6x - 2y = 12
-2y = - 6x + 12
2y = 6x - 12
y = 3x - 6
m = 3
m= -x/y
= -2/5 jadi gradien garisnya yaitu " -2/5 "
b. x=6, y= -2
m= -x/y
= -6 / -2
= 3 jadi gradien garisnya yaitu " 3 "