Understanding Function Values from Graphs

In part three of the tutorial, the focus is on determining the function value F(4) from a graph. The video reviews the domain and range concepts from previous parts and explains how to find the function value graphically. The process involves identifying the input on the horizontal axis and finding the corresponding output on the vertical axis. The tutorial concludes with a summary of the findings, emphasizing the ordered pair (4, 2) as the solution.

What was the focus of parts one and two of the tutorial?

• Calculating the derivative of the function

• Identifying the x-intercepts

• Determining the domain and range from the graph

• Finding the slope of the function

When looking for f(4), where do we locate the input on the graph?

• At the origin

• On the horizontal axis

• On the diagonal line

• On the vertical axis

What is the first step in finding the function value f(4) from the graph?

• Identify the output on the vertical axis

• Locate the input on the horizontal axis

• Calculate the slope of the graph

• Find the y-intercept

How do we find the output value for f(4) on the graph?

• By looking at the horizontal axis

• By finding the point on the graph where x is 4

• By identifying the slope at x=4

• By calculating the area under the curve

What is the ordered pair representation of the function value when x is 4?

• (2, 4)

• (0, 4)

• (4, 2)

• (4, 0)

What does the ordered pair (4, 2) signify in the context of the function?

• The function value f(4) is 2

• The x-intercept of the function

• The slope of the function

• The y-intercept of the function