Classify Graphs and Equations as Linear or Nonlinear

The video tutorial covers the identification of linear and nonlinear functions through equations and graphs. It begins with an introduction to the learning objectives, followed by a detailed explanation of linear functions, including their characteristics and representation in slope-intercept form. The tutorial then explains nonlinear functions, highlighting their distinct features. The video includes practice sessions for identifying functions from graphs and classifying equations as linear or nonlinear, reinforcing the concepts taught.

How can you identify a linear function from its graph?

What is the significance of the slope and y-intercept in a linear function?

Classify the equation y = X^2 + 3X + 1 and explain your reasoning.