Multiple Choice
Let B denote the price of a bag of groceries at time t.It is found that changes sign from positive to negative at
.What can be concluded about the graph of B at the point
?
A) The graph of B reaches a maximum at .
B) The graph of B reaches a minimum at .
C) The graph of B is increasing at .
D) The graph of B is decreasing at .
Correct Answer:
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