# What is m? What is b?

**1) Go to the following site :**

http://www.oercommons.org/courses/slope-intercept-form/view

**2) Start with moving the m first. **

What happens to the line when m is positive?

What happens to the line when m is negative?

What happens to the line when m is close to zero?

What happens to the line when m is close to 5?

What happens to the line when m is close to -5?

What is happening to the line when you change m?

**3) Now move just the b. **

What happens to the line when b increases?

What happens to the line when b decreases?

What is happening to the line when you change b?

**4) What does m stand for?**