need the explanation

23. The function y= f(x) is graphed below on the left. Determine the equation of the function shown on the right. y = f(x) 3 -3 X -6 6 1= 6 . A. y = f ( -x) 2 B. y= f (2x) C. y =-f(x) N D. y=2f(x) Eliztod