The applet below allows you to enter any polynomial function. [br][br][b][color=#9900ff]It will also display (up to at most 10) any x-intercept(s) this function may have. [/color][/b][br][b][color=#38761d]It will also display its y-intercept (if any). [/color][/b]

Use to introduce concept to students and then switch over to graphing calculator to have students explore on their own.