Linear Eq. - Mathematics Pathways

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Linear Eq.

UTAS Home ›  › Mathematics Pathways › Pathways to Business › Module Three: Linear and Quadratic Skills  › Linear Eq.

In this topic you will revise the following

Lesson 1 - The co-ordinate system

Lesson 2 - Introduction to linear equations

Lesson 3 - Introduction to linear graphs

Lesson 4 - More Linear Equations

Lesson 5 - Graphing Linear Equations

Note: Linear Functions and Linear Equations

A linear function is a way of showing the relationship between two or more variables such as:

Example

A book costs 6 dollars and no matter how many books you buy the delivery cost is $12

y = 6x + 12  

You can find a y value (total cost) for any x value (number of books). 
A linear equation is the statement that allows us to calculate one variable when we know the other. 
If the total bill was $30, how many books were bought. 

6x + 12 = 30 
6x = 18 
x = 3 

So 3 books were bought. 

In many Maths resources, the terms Linear Equation and Linear Function are used interchangeably so don’t get confused by this.