Clicker Questions October 14, 2009

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Presentation transcript:

Clicker Questions October 14, 2009 Question 1: A first-order system equivalent to the second order DE x’’+2x’+x=2 is B. C. D.

Clicker Questions October 14, 2009 Question 2: Which second-order differential equation is equivalent to the first-order system: x’=y, y’=2x+4y

Clicker Questions October 14, 2009 Question 3: If we were graphing a vector field in the phase plane of the linear system , what slope would we graph when y1=1 and y2=2?

Question 4: Which linear system matches the given direction field? Clicker Questions October 14, 2009 Question 4: Which linear system matches the given direction field? B. C. D.

Clicker Questions October 14, 2009 Question 5: Which of the following solution curves in the phase plane might correspond to the solution curves x(t) and y(t) graphed below? B. C. D.

Clicker Questions October 14, 2009 Question 6: Which of the following are solutions to the given system? , B. C. D. None of the above. E. All of the above.

10/12/2009 Class Topics Survey Results Clicker Questions October 14, 2009 10/12/2009 Class Topics Survey Results