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Verified answer
Y - 2x - 3 = 0 , y = 2x + 3 ... (i)y + 2x + 5 = 0 , y = -2x - 5... (ii)
Titik Potongnya adalah
2x + 3 = -2x - 5
4x = -8
x = -2
y = 2(-2) + 3
y = -1
Titik potongnya (-2 , -1)
A(-2 , -1) dan B(1 , 8)
m = Δy / Δx
m = (8 + 1) / (1 + 2)
m = 3
Persamaannya :
y - y₁ = m(x - x₁)
y + 1 = 3 (x + 2)
3x + 6 = y + 1
3x - y + 5 = 0