Answer:
C
Explanation:
The red graph is shifted right by 1 from the black graph, so its function would be f(x -1) before it is reflected across the x-axis. Normally, such a reflection will be done by multiplying f(x) by a negative number. Here, that negative number is used to divide y, instead.
The transformation would normally be expected to be ...
y = -1·f(x -1)
By dividing by -1, this becomes ...
y/(-1) = f(x -1) . . . . . . equation of the red graph