Given two points on a graph find the slope using slope triangle

The video tutorial explains how to find the slope of a line given two points. It clarifies that slope and rate of change are the same, involving the change in Y over the change in X. The instructor demonstrates how to identify coordinates from a graph and calculate the slope using a slope triangle. The video also covers the interpretation of positive and negative slopes and concludes with a final slope calculation.

Describe the process of drawing a slope triangle and its purpose.

How can negative values in a fraction affect the slope calculation?

What is the final slope calculated in the example, and how was it derived?