M ( - 4 ; 8 )
N ( 0 ; - 6 )
y = ax + b
8 = - 4a + b
- 6 = b ; b = - 6
8 = - 4a - 6
4a = - 14
a = - 3,5
у = - 3,5х - 6
Целые а ; b ; c - целые числа
2у = 2( - 3,5х - 6 )
2у = - 7х - 12
ах + by = c
by = - ax + с
2у = - 7х - 12
а = 7 ; b = 2 ; c = - 12
7х + 2у = - 12
Ответ 7х + 2у = - 12