How to Determine Polynomial Signs on Intervals

Miacademy & MiaPrep Learning Channel

This instructional video provides a comprehensive guide on how to determine the sign (positive or negative) of a polynomial function within a specific interval. The lesson begins by using graphical representations to build intuition, showing visually how functions dip below or rise above the x-axis between their roots. The instructor, Randy, demonstrates how to identify the relevant section of a graph based on given x-values and read the corresponding y-values to determine the sign.