Q161 · Practice questionTechnology-freeSimple familiar1 mark
QUESTION 161
A differentiable function has a stationary point at and . The stationary point is
(A)
a local maximum
(B)
a local minimum
(C)
a point of inflection
(D)
necessarily a global maximum
WORKED SOLUTION
1 markAnswer B
ANSWER
B
Worked solution
At a stationary point, a positive second derivative indicates the graph is concave up, so the point is a local minimum.
Selects the correct option.
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