MINDTAP st-Order Differential Equations MindTap-Cenga x MATH 2770, sect 0004610 324926383&snapshotid=843593& AA In Problems 21. 22. 23. 24. 25. 26. 27, and 28 find the critical points and phase portrait of the given autonomous first-order differential equation. Classify each critical point as asymptotically stable, unstable, or semi-stable. By hand, sketch typical solution curves in the regions in the zy-plane determined by the graphs of the equilibrium solutions. dy 21.2-3y dz Answer+ 0 is asymptotically stable (attractor) 3 is unstable (repeller) dy 22. --³ dz Answer+ is semi-stable Q Search Web ЛА 人 % & 5 6 7 8 E R T Y U K Q Search .numirelSBN 9780357048634&id=324926383&snapshotid=843593& AGE MINDTAP First-Order Differential Equations # MindTap-Cenga x MATH 2770, sec VIV 15. In parts (a) and (b) sketch isoclines f(x, y) = c(see the Remarks) for the given differential equation using the indicated values of c. Construct a direction field over a grid by carefully drawing lineal elements with the appropriate slope at chosen points on each isocline. In each case, use this rough direction field to sketch an approximate solution curve for the IVP consisting of the DE and the initial condition y(0) = 1. (a) dy/dz = z+y; e an integer satisfying-5555 (b) dy/dz=2+;c=c=1,c=c=4 Discussion Problems 16. (a) Consider the dinaation field of the differential matine 12 4 C Q Search Web % E R 5 ♫A A & * Y 7 akut da maku D F G H K 人 AA Q Seard