18.
Estimate the value of the function at x = 2 given the following graph.

Answer:
The answer to your question is: F(2) = 3
Step-by-step explanation:
When x = 2, what is the value of f(x)
Just look in the graph 2 in the x-axis and in the red line look for the value of the graph.
Notice that when x = 2 f(x) = 3