How to find the intervals that a function is increasing and decreasing

The video tutorial explains how to read a graph, focusing on identifying increasing and decreasing intervals based on X values. It emphasizes the importance of distinguishing between X and Y values when describing these intervals. The tutorial concludes with a summary of the graph's behavior, noting that it is not constant at any point.

What is the primary axis used to determine if a function is increasing?

• Y-axis

• Z-axis

• X-axis

• W-axis

Between which X values is the graph increasing according to the video?

• 6 to 8

• 2 to 4

• 1 to 3

• 5 to 7

What is the term used to describe the graph's behavior from X value 7 onwards?

• Negative Infinity

• Zero

• Positive Infinity

• Constant

From which X value does the graph start decreasing?

• 2

• 8

• 4

• 6

What is the range of X values where the graph is decreasing before it starts increasing again?

• 4 to 7

• 3 to 5

• 7 to 9

• 0 to 2