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3x + 2y = 6
2y = -3x + 6
y =
jadi gradien garisnya =
karena tegak lurus :
m1 . m2 = -1
. m2 = -1
m2 =
pers. garis melalui (x1,y1) = (2,-1)
y-y1 = m (x-x1)
y - (-1) = (x - 2)
y + 1 = (x - 2)
3 (y + 1) = 2 (x - 2)
3y + 3 = 2x - 4
3 + 4 = 2x - 3y
persamaan garis :
2x - 3y - 7 = 0
semoga membantu :)