tolong bantu saya nomor :1 sampai 5 kakak yg bisa mau disetor skrg

1) y - y1 = m ( x - x1)
y - 10 = 8 ( x + 2)
y = 8x + 16 + 10
y = 8x + 26
y - 8x = 26

2) 2y + 3x - 12 = 0
2y = - 3x + 12
m = - 3/2
syarat sejajar m1 = m2 = - 3/2
pers garis
y - y1 = m ( x - x1)
y - 9 = - 3/2 ( x + 1)
y = - 3/2 x - 3/2 + 9 ( dikali 2)
2y = - 3x - 3 + 18
2y = - 3x + 15
2y + 3x = 15

3) y - y1 = m ( x - x1)
y - 14 = - 2/7 ( x + 3)
y = - 2/7 x - 6/7 + 14 ( dikali 7)
7y = - 2x - 6 + 98
7y + 2x = 92

4) - 3y - 5x + 15 = 0
- 3y = 5x - 15
m = 5/-3
m = - 5/3
tegak lurus
m1 . m2 = - 1
- 5/3 . m2 = - 1
m2 = 3/5
pers garis
y - y1 = m ( x - x1)
y - 2 = 3/5 ( x + 9)
y = 3/5 x + 27/5 + 2 (dikali 5)
5y = 3x + 27 + 10
5y - 3x = 37

5) ( y - y1) / ( y2 - y1) = ( x - x1) / ( x2 - x1)
( y - 2) / ( 7 - 2) = ( x + 2 ) / (2 + 2)
( y - 2) / 5 = ( x + 2) / 4
4 ( y - 2) = 5 ( x + 2)
4y - 8 = 5x + 10
4y - 5x = 10 + 8
4y - 5x = 18