Liner Applet

This applet gives practice in estimating the slope and y-intercept of the line through two points.
Being able to quickly estimate such slopes 'by eye' is a basic but important  and useful skill for the study and application of calculus. The applet gives you a hint if you need it, and the option of using the slider to control the slope value lets you work by trial and error at first; but the goal should be to be able to just type in good approximate values on your first guess.

[If your browser refuses to run this app in an iFrame then you might try to run it in a new "insecure" window]