Finding k from the Point (1, k)

Finding k from the Point (1, k)

Introduction

In proportional relationships, the constant of proportionality, k, describes how two quantities are related. One of the simplest ways to identify k is by using a special point on a graph.

You are tracking how many miles you bike and how long it takes.

To understand this relationship, you graph your data by placing time on the x-axis and distance on the y-axis.

Each point shows how far you’ve traveled after a certain amount of time.

When you plot the points, they form a straight line through the origin. This sho...