Linear Functions and Rate of Change - work in progress

Graph of a linear function and slope

The graph of a function described by an equation of the form is a line. For this reason we name the class of such functions as linear functions. If we know the coordinates of two points on the line, and we can calculate the (constant) slope of the line: .

Now try it yourself...

Move the points and in the app below, then enter the value of the slope of the line in the input box. Select the Check answer checkbox to verify your answer. Another checkbox will appear, allowing you to view the solution of the exercise. Deselect the Check answer checkbox to try again with the same line, or move the points in the xOy-plane and guess the slope of a new line.