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4x + 2y = 6 --> 2y = -4x + 6
gradiennya m1 = -4/2 = -2
gris g sejajar, maka gradiennya m2 = m1 = -2
melalui titk (x1,y1) = (2,-5)
gunakan rumus y-y1 = m(x-x1)
y - (-5) = -2(x-2) --> y+5 = -2x + 4
atau y = -2x +4 -5 --> y = -2x -1
atau 2x +y = -1
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cra II
persamaan garis g sejajar 4x+2y= 6 melalui (2, -5) adalah
4x+2y = 4(2) +2(-5)
4x+2y = 8 -10
4x+2y = -2 aatau 2x+y = -1
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