Identifying the Scale Factor

Identifying the Scale Factor

Introduction

A scale factor is the number used to multiply every corresponding length when an object or drawing is enlarged or reduced.

Theory

Adding the...

You and your friends are enlarging a 4-inch-by-3-inch baseball tournament photo into a 12-inch-long banner while keeping the same shape. One friend suggests applying the increase in length to the width.

Since the length increased by 8 inches, adding the same 8 inches to the 3-inch width would give a width of 11 inches.

However, addin...