1. Start with an equation like 3x + 5y = 15

2. Move 3x to the other side, so 5y = 15 – 3x

3. Divide both sides by 5, so y = 3 – x

4. Another way of writing this is y = -.6x + 3, or y=mx + b, where m=-0.6 and b = 3

5. If m = -0.6, that means that the slope = -0.6