Function Evaluation and Graph Interpretation

The video tutorial focuses on evaluating functions using a graph. It begins by explaining the basic concept of input (X) and output (Y) in functions. The instructor demonstrates how to find the Y value for specific X values by locating points on the graph. The tutorial progresses to more advanced techniques, such as determining the X value when given a Y value, emphasizing the relationship between the X and Y axes. The video aims to enhance understanding of function evaluation through practical graph analysis.

What is the output variable in a function evaluation?

• X

• F

• Y

• Z

In function evaluation, what does the input variable represent?

• F

• X

• Z

• Y

What is the first step in evaluating a function using a graph?

• Identify the x-value

• Identify the slope

• Identify the y-value

• Identify the origin

If the x-value is 4, what is the y-value according to the graph?

• 3

• 2

• 1

• 0

What y-value corresponds to an x-value of 2 on the graph?

• 3

• 4

• 6

• 5

For an x-value of 10, what is the y-value on the graph?

• 3

• 2

• 1

• 0

What is the y-value when the x-value is 0?

• 7

• 8

• 5

• 6

If the x-value is 6, what is the y-value on the graph?

• 1

• 2

• 4

• 3

What y-value is found for an x-value of 7?

• 3

• 2

• 3.5

• 2.5

What is the process to find y for a given x on a graph?

• Move vertically from x-axis

• Move horizontally from x-axis

• Move diagonally from x-axis

• Move randomly from x-axis