Which is the graph of f (x) = 5 (2) "?

a horizontal line where y=10 or f (x) = 10

Reasoning:

f (x) = 5 (2) simplifies to:

f (x) = 10

f (x) is the y axis, so this means no matter what x is, f (x) or y is 10.

Therefore, it is a horizontal line with the equation of y=10 or f (x) = 10

F (x) = 10 is the answer