kak tolong jawab soal saya

Persamaan Garis

2x + 3y - 4 = 0
m1 = -a/b = -2/3

Tegak lurus ---> m2 = -1/m1 = 3/2

2px + (p + 3)y + p = 0
m2 = 3/2
-2p/(p + 3) = 3/2
Kalikan silang
-4p = 3p + 9
-7p = 9
p = -9/7 ✔