Consider the function graphed below.

graph of a smooth function starting at (-1,0), decreasing to a minimum at about x=0, increasing through (1,0) to a maximum above the x-axis at about x=3.5, and then decreasing to (5,0).

For this function, are the following nonzero quantities positive or negative?
is
is
is

(Because this is a multiple choice problem, it will not show which parts of the problem are correct or incorrect when you submit it.)