# Types of Slope

#### From the previous section, you have discovered that there are four types of slope.

- postive slope (when lines go uphill from left to right)
- negative slope (when lines go downhill from left to right)
- zero slope (when lines are horizontal)
- undefined slope (when lines are vertical)

#### Now we are ready to look at how to calculate the numerical values of slope on graph paper in the next section.

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