Tolong bantu jawab soal ujian matematika mau di kumpul hari ini​

Jawab:

3x – 4y +9=0

-4y=-3x-9

y=3/4 x + 9/4

m=3/4

y-y1=m(x-x1)

y-7=3/4(x-(-5))

y-7=3/4x+15/4

y=3/4x+43/4

4y=3x+43

3x-4y+43=0 (B)