Explore the Properties of a Straight Line Graph

Move the m and b slider bars to explore the properties of a straight line graph. See:

• The effect of changes in m
• The effect of changes in b
• The effect of a negative value of m
• The effect of a negative value of b
• How to create a horizontal line

Read more about the Equation of a Straight Line

Find the Equation from 2 Points

Now see how two points can change the line equation. Try to make:

• y = x
• y = x + 2
• y = −2x + 8
• y = 4
• x = 4