trendlines

Trendlines are straight lines drawn on a chart that connect important data points to show the overall direction of data over time. They help identify whether values are generally increasing (upward trend), decreasing (downward trend), or remaining steady (sideways). Think of them as visual guides that summarize the pattern in complex data, making it easier to understand whether things are improving, declining, or stable. Trendlines are useful for spotting long-term tendencies and making informed predictions based on past data behavior.