pliss tolong jawab cepat ya makasih
Matematika
nicke13
Pertanyaan
pliss tolong jawab cepat ya makasih
1 Jawaban
-
1. Jawaban cupid85
g) x + 2y + 6 = 0
2y = - x - 6
m = - 1/2 = - ½
tegak lurus
m1 . m2 = - 1
- ½ . m2 = - 1
m2 = - 1 ÷ - ½ = 2
y - y1 = m (x - X1)
y + 2 = 2(x - 4)
y = 2x - 8 - 2
y = 2x - 10
h) 3x + y = 4
y = - 3x + 4
m = - 3/1 = - 3
tegak lurus
m1 . m2 = - 1
- 3 . m2 = - 1
m2 = ⅓
y - y1 = m (x - X1)
y - 5 = ⅓(x - 1)
y = ⅓ x - ⅓ + 5
y = ⅓ x + 14/3 (dikali 3)
3y = x + 14