Question

Nilai a dan b berturut turut adalah

Answer 1

Verified answer

Persamaan Garis
>> SPLDV

ax + by = 8
• (3,-2)
3a - 2b = 8 .... (1)

• (2,4)
2a + 4b = 8
a + 2b = 4 ... (2)

Jumlahkan (1) dan (2)
(3a - 2b) + (a + 2b) = 8 + 4
4a = 12
a = 3 ✔

a + 2b = 4
2b = 4 - a
2b = 1
b = 1/2 ✔

Opsi A