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Mathematical Methods — Question 2

QCAA 2022, Paper 2 · 1 mark

Q2 · 2022 · Technology-activeSimple familiar1 mark

QUESTION 2

Identify the correct features of the function f(x)=xexf(x)=xe^x.
(A)
f′(−1)=0,  f′′(−1)<0f'(-1)=0,\;f''(-1)<0
(B)
f′(−1)=0,  f′′(−1)>0f'(-1)=0,\;f''(-1)>0
(C)
f′(−1)<0,  f′′(−1)<0f'(-1)<0,\;f''(-1)<0
(D)
f′(−1)<0,  f′′(−1)>0f'(-1)<0,\;f''(-1)>0
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