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MIDDLE SCHOOL

Mathematics (Grade 8)

Expressions & Equations

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Expressions & Equations: Linear Equations

Comparison of Graph vs Equation

Description

Comparison of Graph vs Equation
Introduction

Proportional relationships can be represented in different ways. Two common representations are equations and graphs. Both show the same relationship, but in different f...

Transcript

Imagine a bike rental shop that charges $4 per day to rent a bicycle. To represent this using an equation, let x be the number of days, and y be the total cost.

Since the total cost is 4 times the number of days, we write y = 4x.

Here, the number 4 is called the constant of proportionality, meaning the cost increases by $4 for each d...