Answer:
c = 3
Explanation:
Function g is defined as,
g(x) = f(x) - c
Which states that the image function 'g' is formed by shifting function 'f' by c units down along y-axis.
Since, function 'f' has been shifted 3 units down to form the image function 'g'.
Therefore, value of c = 3 will be the answer.