Hey jls9102.

Recall that f(-x) takes f(x) and reflects around the y-axis and that f(x-a) shifts the graph a units to the right along the x-axis where a*f(x) stretchs it (and possibly flips it) and finally f(x) + a shifts everything a units up in the direction of the y-axis.

So consider f(x + pi/2) first and then reflect that on the y-axis and take it from there.