Answer: 2.
- A 0
- B 1
- C 2
- D 3
Correct answer: C. 2
Explanation: An nth order DE has n arbitrary constants in the general solution.
The general solution y=Ax² represents an entire FAMILY of curves, one for each value of the arbitrary constant A; a particular solution (fixed by an initial condition) selects exactly one curve from this family.
Concept context
Equations involving derivatives and their solutions