1. Clicker Questions Friday Sep. 4, 2009
Question A: What does the differential equation y’=2y tell you about the slope of the solution curves at any points??

2. Clicker Questions Friday Sep. 4, 2009
Question B: The slope field below indicates that the differential equation has which form?
y’=f(t)
y’=f(y)
y’=f(t,y)
None of the above.
We don’t have enough information to answer

3. Clicker Questions Friday Sep. 4, 2009
Question C: The slope field below indicates that the differential equation has which form?
y’=f(t)
y’=f(y)
y’=f(t,y)
None of the above.
We don’t have enough information to answer

4. Question 1: Which of the following DEs would generate the slope field?
Clicker Questions Friday Sep. 4, 2009
Question 1: Which of the following DEs would generate the slope field?
y’=1/x
y’=1/y
y’=exp(-x2)
y’=y2-1
y’=(x+y)/(x-y)
y’=sin(x)sin(y)

5. Question 2: Which of the following DEs would generate the slope field?
Clicker Questions Friday Sep. 4, 2009
Question 2: Which of the following DEs would generate the slope field?
y’=1/x
y’=1/y
y’=exp(-x2)
y’=y2-1
y’=(x+y)/(x-y)
y’=sin(x)sin(y)

6. Question 3: Which of the following DEs would generate the slope field?
Clicker Questions Friday Sep. 4, 2009
Question 3: Which of the following DEs would generate the slope field?
y’=1/x
y’=1/y
y’=exp(-x2)
y’=y2-1
y’=(x+y)/(x-y)
y’=sin(x)sin(y)

7. Question 4: Which of the following DEs would generate the slope field?
Clicker Questions Friday Sep. 4, 2009
Question 4: Which of the following DEs would generate the slope field?
y’=1/x
y’=1/y
y’=exp(-x2)
y’=y2-1
y’=(x+y)/(x-y)
y’=sin(x)sin(y)

8. Question 5: Which of the following DEs would generate the slope field?
Clicker Questions Friday Sep. 4, 2009
Question 5: Which of the following DEs would generate the slope field?
y’=1/x
y’=1/y
y’=exp(-x2)
y’=y2-1
y’=(x+y)/(x-y)
y’=sin(x)sin(y)

9. Question 6: Which of the following DEs would generate the slope field?
Clicker Questions Friday Sep. 4, 2009
Question 6: Which of the following DEs would generate the slope field?
y’=1/x
y’=1/y
y’=exp(-x2)
y’=y2-1
y’=(x+y)/(x-y)
y’=sin(x)sin(y)