Answer: The answer is (A) tan x = 1.
Step-by-step explanation: We are given to select the correct equation from the options that is represented by the intersection of the graphs shown in the figure.
We can see in the graph that the red graph shows the function (1) as follows:
and the blue graph shows the following function (2):
Therefore, the intersection of the graphs (1) and (2) will be
Thus, (A) is the correct option.