pakai cara ya......

jawab

gradien  2x - 5y = 6 --> m1 = 2/5
tegak lurus --> m2 = - 5/2
melalui ( - 2,-1) --> y -y1 = m2(x - x1)
y + 1 = - 5/2 (x + 2)
2(y +1) = -5(x +2)
2y + 2 = - 5x - 10
2y = - 5x - 12