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y = 2x - 5
m₁ = 2
m₂ = - 1/m₁
= - 1/2 (yg ini)
2) 3y = - 4x + 6
y = (- 4/3)x + 2
m = - 4/3
3) 3y = x
y = (1/3)x
m₁ = 1/3
m₂ = - 3 (yg ini)
2x-y=5
y=2x-5, gradiennya 2, gradien yang tegak lurus m, m*2=-1, m=-1/2
2.
4x+3y=6
3y=6-4x
y=2-4/3x, gradiennya -4/3, sejajar, maka gradiennya sama yaitu -4/3
3.
x-3y=0
x=3y
y=1/3x gradiennya 1/3
gradien tegak lurusnya adalah -3