Linear Equations
Find the equation for a graph in the form y=mx+b when you are given two points on the graph.
Directions:
Enter the points in the form x,y with no spaces, for example, 3,4 or 2.3,5.72
The large text window will show the calculations steps for finding the slope from the two points and then substituting the x,y coordinates to find the value of the yintercept, b
(Repeating decimals, etc. are truncated in the sample problems to make them easier to read)

Find the equation from two points on a grid: 