Question

Persamaan garis melalui titik (3,5) dan sejajar garis 3x - 5y = -6 adalah . . . .

Answer 1

Koef. x × x₁ = 3 × 3 = 9
Koef. y × y₁ = -5 × 5 = -25

3x - 5y = ( 9 - 25 )
3x - 5y = -16

Answer 2

Ax + by = c --> m = -a/b
3x - 5y = -6 --> m = -3/-5 = 3/5

persamaan garis dgn m = 3/5 dan melalui titik (3,5):
y - y₁ = m (x - x₁)
y - 5 = 3/5 (x - 3)  --> kedua ruas dikali 5
5y - 25 = 3 (x - 3)
5y - 25 = 3x - 9
3x - 5y = -25 + 9
3x - 5y = -16

semoga membantu ya :)