Answer: ln(1.5).
- A ln(1.5)
- B 0.5
- C ln(2)
- D 1.5
Correct answer: A. ln(1.5)
Explanation: P = 1000 e<sup>kt</sup>. At t=1: 1500 = 1000 e<sup>k.</sup> k = ln(1.5).
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