Answer:
Third option:
Step-by-step explanation:
Below are shown two transformations for a function f(x):
If , the function is shifted up "k" units.
If , the function is shifted down "k" units.
In this exercise you know that the function g(x) is obtained by shifting down the function f(x) 7 units.
Then, given the function f(x):
You can determine (based on the transformations explained before) that the function g(x) is:
Therefore, you can identify that the value of "k" is: