Final answer:
The point that could be used to find f(3) is (4, 8).
Step-by-step explanation:
The point that could be used to find f(3) is (4, 8). To find the value of f(3), we need to identify the y-coordinate when x = 3. Looking at the graph, we can see that the point (4, 8) intersects the line at x = 3, so the value of f(3) is 8.