Linear 1 - Points forming a line (slope/equation)

After this tutorial you should be able to:

• use slope to check if points form a line
• Test ordered pairs in an equation to see if a point belongs to the line

Two points always form a line, but three can form a line or a triangle. We can test the slope between points to see if they are in a line. If we have the equation of the line, we can test the points in the equation to see whether or not it gives a true statement of equality.