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y=3x-4
3*(-2m+5)=-1
-6m+15=-1
-6m=-16
m=16/6
m=8/3
- y = - 3x + 4
y = 3x - 4
warunek prostopadłości prostych a₁ * a₂ = - 1
a₁ = (- 2m + 5)
a₂ = 3
(- 2m + 5) * 3 = - 1
- 6m + 15 = - 1
- 6m = - 1 - 15
6m = 16
m = 16/6 = 2 4/6 = 2 1/3