jawab denga cara nya,tolong bsk di kumpul
Matematika
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Pertanyaan
jawab denga cara nya,tolong bsk di kumpul
1 Jawaban
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1. Jawaban fatimah3085
1) 3x + 18 y - 4 = 0
18y = - 3x + 4
y = - 3/18 x + 4/18
y = - 1/6 x + 2/9
m1 = - 1/6
sejajar m1 = m2
y - y1 = m(x - X1)
y - 3 = - 1/6 (x - 4)
y - 3 = - 1/6 x + 4/6
y = - 1/6 x + 4/6 + 3
y = - 1/6 x + 22/6
-------------------------(×6)
6y = - x + 22
2) 6x - 3y - 2 = 0
- 3y = - 6x + 2
y = 2x - ⅔
m1 = 2
syarat m1 = m2 = 2
y - y1 = m (x - X1)
y - 4 = 2(x - 3)
y - 4 = 2x - 6
y = 2x - 6 + 4
y = 2x - 2
3) x = 2y - 4
2y = x + 4
y = ½x + 2
m1 = ½
syarat = m1 = m2 = ½
y - 6 = ½(x + 7)
y - 6 = ½x + 7/2
y = ½x + 7/2 + 6
y = ½x + 19/2
------------------------(×2)
2y = x + 19
4)y = 3x - 2
m1 = 3
syarat m1 = m2 = 3
y - 3 = 3(x + 6)
y - 3 = 3x + 18
y = 3x + 15
5) 2x = 6y - 3
6y = 2x + 3
y = 2/6 x + 3/6
y = ⅓x + ½
m1 = ⅓
syarat = m1 = m2 = ⅓
y - 5 = ⅓(x - 3)
y - 5 = ⅓x - 1
y = ⅓x + 4