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Verified answer
Garis g melalui (5 , 0) dan (0 , 2)= Δy / Δx
= (2 - 0) / (0 - 5)
= - ²/₅
Garis g dari garis h tegak lurus , maka
• mₕ = -1
- ²/₅ • mₕ = -1
mₕ = ⁵/₂
Garis h melalui (5 , 7) maka persamaan garisnya
y - y₁ = mₕ(x - x₁)
y - 7 = ⁵/₂ (x - 5) [× 2 kedua ruas]
2y - 14 = 5(x - 5)
2y - 14 = 5x - 25
5x - 2y = 9
atau
5x - 2y - 9 = 0