Suppose y' = ky + b and the graphs of several solutions of the differential equation are as below:
Then(I)k is negative.(II)k is positive.(III)b is positive.(IV)b is negative.
A. II and III
B. I and III
C. I and IV
D. II and IV
E. not enough information given
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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What will be an ideal response?
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A. 
B. 1
C. 
D. 
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