tentukan nilai a,b,c jika titik A(a,4), B(1,b),C(3,c) terletak pada garis 2x+y=4

jawab

garis 2x + y = 4
(a ,4)  → 2(a) + (4) = 4 → a = 0
(1, b)  → 2(1) + (b) = 4 → b = 2
(3, c)  → 2(3) + (c) = 4 → c = - 2