Question 1
At what value(s) of x does the graph of f(x) = x e
-x2 have inflections?
◦ 0
◦ ±
◦ 0 and ±
◦ ±
◦ 0 and ±
Question 2
Which of the following statements best describes the graph of the function f(x) = x
-1/(ln x)?
◦ The graph is a straight line.
◦ The graph is concave up on (0, e) and concave down on (e, ∞).
◦ The graph is concave down on (0, e) and concave up on (e, ∞).
◦ The graph is concave down on (0, ∞).
◦ The graph is concave up on (0, ∞).