Phase Portraits: For Problems 1-3, find (t) and then sketch the trajectory for the NP in the

Question:

Phase Portraits: For Problems 1-3, find (t) and then sketch the trajectory for the NP in the x phase plane, with arrows showing the direction of motion. (These are the equations of Problems 1-2 and 23-30.) Explain how and why your phase portraits differ from each other and from Fig 4.1.4.
1. + x = 0, x(0) = 1, (0) = 0
2 + x = 0, x(0) = 1, (0) = 1
3. + 9x = 0, x(0) = 1, (0) = 1