Answer:
Option (C)
Explanation:
y = g(x) is obtained by reflecting the graph y = f(x) in the y-axis.
Let the function g(x) = x + 7
If the graph of function g(x) is reflected across y-axis,
g(x) = -x + 7 [Since, x-coordinates of the points lying on the graph of the transformed function gets reversed with the sign notation]
Therefore, f(x) = g(-x)
Option (C) will be the answer.