When , the graph of is
A)increasing and concave up
B)increasing and concave down
C)decreasing and concave up
D)decreasing and concave down

Question

When  , the graph of  is
A)increasing and concave up 
B)increasing and concave down 
C)decreasing and concave up 
D)decreasing and concave down

Quizplus · Accepted Answer

The given number sequence suggests that the function is increasing (since the second part of the number is increasing) and the second derivative is negative (since the last part of the number is decreasing). This means the function is increasing and concave down.

When , the Graph of Is