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EXPALIN IT SIMPLE AND FOR 9TH GRADE AAND SO I CAN COPY AND PASTE

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

1 answer

To find \( f(3) \) using a graph of the function \( f(x) \), follow these simple steps:

  1. Locate 3 on the x-axis: Look at the horizontal axis (x-axis) of the graph. Find the point where \( x = 3 \).

  2. Move up to the graph: From the point where \( x = 3 \) is located on the x-axis, move vertically upwards until you reach the graph of the function.

  3. Read the y-coordinate: Once you reach the graph, look at the y-coordinate of that point. This value is \( f(3) \).

  4. Write it down: The y-coordinate you found is the result for \( f(3) \).

That's it! You have used the graph to find the value of the function at \( x = 3 \).