persamaan garis yang melalui titik (-3, 1) dan (6, 7) adalah... a. 3y - 2x = 9 b. 3y + x = 9 c. 2y - 3x = 9 d. 2y + 3x = 15 pakai cara

y2-y1 : x2- x1
7-1 : 6-(-3)
6 : 6+3
6 : 9
= 2/3

y-y1 = m(x-x1)
y-1 = 2/3 (x-(-3)
3(y-1) = 2(x+3)
3y - 3 = 2x + 6
3y = 2x + 6 + 3
3y = 2x + 9
2x - 3y + 9 = 0

karena di pilihan y nya Positif kita kali (-1)
3y - 2x -9 = 0
3y -2x = 9