Answer: Highest derivative.
- A Highest power
- B Highest derivative
- C Number of variables
- D Number of constants
Correct answer: B. Highest derivative
Explanation: Order = order of the highest derivative present. For d²y/dx² + dy/dx = 0, the order is 2.
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