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MIDDLE SCHOOL

Mathematics (Grade 8)

Expressions & Equations

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Expressions & Equations: Linear Equations

Understanding the Equation: y = mx

Description

Understanding the Equation: y = mx

Introduction

Have you ever noticed that some things increase at a steady rate, like earning points in a game or saving money each week? The equation y = mx helps us describe those situations. This equation is important be...

Transcript

Imagine taking a taxi ride where the company charges $3 per mile, with no starting fee.

If you travel 1 mile, the cost is $3. For 2 miles, it is $6, and for 3 miles, it is $9.

We notice a pattern here: the cost is always 3 times the distance.

If we let x be the distance traveled, and y be the cost, we can writ...