explain how to use a graph of the function f(x) to find f(3).

Answer:

To find (f(3)) using the graph of (y = f(x)), locate (x = 3) on the (x -)axis. Then, draw a vertical line through (x = 3) until it intersects the graph of the function (y=f(x)). The (y -)coordinate of the point of intersection is the value of (f(3)).

Explanation:

Step1: Locate x - value

Locate (x = 3) on (x -)axis.

Step2: Draw vertical line

Draw vertical line through (x = 3).

Step3: Find y - coordinate

Find (y -)coordinate of intersection. That is (f(3)).