Question

Determine all solutions of the differential equation y`= -9y
Use the variables C and x as appropriate.

Answer 1

dy/dx = -9y
dy/y = -9dx
ln|y| = -9x + C
e^ln|y| = e^(-9x+C)
y = e^C*e^(-9x)
y = Ae^(-9x)

Answer 2

as e to some constant is still a constant then u just write that as A

Answer 3

Please click on become a fan if I helped, I really want to get to the next level!! Thanks =)

Answer 4

yeh np

Answer 5

haha, click on become a fan, really want to get to the next level, haha, I like it. You deserve it bahrom, nice work. Wish I had someone to help me out like that the first time I saw diffeq ; )