# Walk the Line - Straight Line Distance Graphs

Recommended for High School.

## Introduction

When one quantity changes at a constant rate with respect to another, we say they are *linearly related*. Mathematically, we describe this relationship by defining a linear equation. In real-world applications, some quantities are linearly related and can be represented by using a straight-line graph.

In this activity, you will create straight-line, or constant-speed, distance versus time plots using a Motion Detector, and then develop linear equations to describe these plots mathematically.

## Objectives

- Record distance versus time data for a person walking at a uniform rate.
- Analyze the data to extract slope and intercept information.
- Interpret the slope and intercept information for physical meaning.

## Sensors and Equipment

This experiment features the following Vernier sensors and equipment.

### Option 1

### Option 2

### Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?

## Standards Correlations

See all standards correlations for *Real-World Math Made Easy* »

*Real-World Math Made Easy*

*Real-World Math Made Easy*

See other experiments from the lab book.