Question

Which of the following is not a differential equation? (see attachment for options)

Answer 1

Which one do you think?

Answer 2

E?

Answer 3

No.

Answer 4

y'=0 -> can be written in Leibniz notation as dy/dx=0

Answer 5

any others that might be a candidate?

Answer 6

B?

Answer 7

Nope. B just switches aroud the varibles, "the derivative of x with respect to y plus 2x equals four plus y"

Answer 8

D!?

Answer 9

so which is it?

Answer 10

then explain.

Answer 11

What's wrong with D?