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Verified answer
Mapel : MatematikaKategori : Persamaan Garis Lurus
Kelas : SMP / MTs kelas VIII
Semester : Ganjil
Pembahasan:
2x + y = 5
y = -2x + 5
m = -2
2x - 4y = 5
-4y = -2x + 5
m = -2/-4
= 1/2
Syarat tegak lurus apabila:
Terbukti, bahwa kedua garis tersebut saling tegak lurus