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- 8 ≥ 2x
-4 ≥ x
m = 1 - 2 per -4 - (-2) = - 1 per - 2 = 1 per 2
y = 2x + 5 , maka m1 = 2
karena tegak lurus, maka m2 = -1 : 2 = - 1 per 2
persamaannya :
y - 1 = - 1/2 (x - 3)
2y - 2 = - x + 3
2y + x - 5 = 0
3x - 2y + 6 = 0
3x + 6 = 2y
3/2 x + 3 = y
maka gradiennya 3/2
karena sejajar, maka gradiennya sama
persamaannya :
y - 3 = 3/2 (x - 4)
2y - 6 = 3x - 12
2y - 3x + 6 = 0