The document discusses slope and rate of change in lines. It defines slope as the rise over the run and provides the formula for calculating slope. It notes that horizontal lines have a slope of zero while vertical lines have an undefined slope. Examples are then provided to demonstrate calculating the slope.

1. Slope & Rate of Change

2. Vocabulary & Formulas
• Slope (m) =
• Rate of Change – the change in dependent (y)
variable over the change in independent (x)
variable
• Horizontal lines have zero slope
• Vertical lines have undefined or no slope
in xchange
yinchange

run
rise
12
12
(m)
xx
yy
slope



Positive slope Negative slope

3. Examples
Find the slope of each of the examples below:

4. Examples
Find the slope of each of the examples below:

5. Examples

6. Examples