# Slope as a Rate of Change

# Slope as a Rate of Change

Slope can be thought of as a measure of how fast something is changing. This understanding is especially important when faced with word problems.

## LEARN IT

In a word problem or application problem the slope is the rate of change, how fast a situation increases or decreases. Look for the key word "per" to help identify a rate of change. Miles *per* gallon, dollars *per* hour, calories *per* meal, and words *per *minute are all examples of commonplace rates of change.

### Watch the Virtual GED Class video below for a complete explanation and tons of worked example problems.

## PRACTICE IT

**Beginner:****Slope as a Rate of Change Beginning****Experienced:****Slope as a Rate of Change Experienced****Advanced:****Unit Rates from Line Graphs**

## WORKED EXAMPLES

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