How to determine the intervals that a function is increasing decreasing or constant

The video tutorial explains how to identify increasing, decreasing, and constant behaviors in graphs. It emphasizes reading graphs from left to right and using X values to determine Y value behavior. The tutorial clarifies notation differences from domain and range and provides examples to illustrate graph behavior analysis.

What is the first step in understanding the behavior of a graph?

• Reading the graph from right to left

• Identifying the Y values first

• Reading the graph from left to right

• Ignoring the X values

When analyzing a graph, what should you focus on after noting the X values?

• The thickness of the graph line

• The title of the graph

• The behavior of the Y values

• The color of the graph

What does the graph do from negative infinity to the X value of -4?

• It oscillates

• It remains constant

• It decreases

• It increases

How are included values denoted when identifying intervals on a graph?

• With brackets

• With parentheses

• With quotation marks

• With curly braces

What is a common mistake students make when analyzing graphs?

• Ignoring the graph's title

• Reading the graph from top to bottom

• Using the Y values instead of the X values

• Focusing on the graph's color