Explain why the graphing calculator cannot be used to solve or approximate solutions to all polynomial equations.
Explaining why graphing calculator cannot be used :
Graphing equations in order to identify a specific point of intersection is usually not a precise way to solve systems because it is often difficult to see exactly where two lines intersect (unless you are using a computer-based graphing program that allows you to zoom in on a point).
Disadvantages of solving a system of linear equations by graphing. The point of intersection (The solution) may have a fraction or a decimal number and it is difficult to determine the solution accurately from the graph. The graph is difficult and takes more time when you are dealing with equations have gib numbers.