Exchange Rates
You may travel outside México and should be familiar with currency conversion rates since currencies other than Mexican Pesos are used in most other countries. As of October 15, 2011, one US dollar was equivalent to 0.7749 Euros. A linear equation of a function, E, which converts US dollars (D) to Euros (E) would be E = 0.7749D

You would just put the number of dollars in for "D" and multiply by 0.7749 and this will give you the number of Euros you would get for your US dollars. This is a "real world application" of a linear function. Cell Phones

Just about everyone has a cell phone, and most rate plans are a linear function of some kind. Let's take a look at a basic example that is a real-life application of a linear equation. If you pay 20 dollars a month for your cell phone and 5 cents per minute of usage the monthly cost of using your cell phone would be a linear equation of a function, C, the monthly cost based on the number of minutes you use monthly. C = 0.05m + 20

You can see that your cost is 20 dollars plus five cents times the number of minutes you use your cell phone. Travel
Let's say we are going on a trip where we are averaging 60 miles per hour, this is a linear function. The equation would be D = 60t
where D is the distance covered in t hours. You would just put a time in hours in for t to see how far you get (D miles). You can see you don't have to look far for real-life examples of linears functions.

Other examples:
The linear function F = 1.8C + 32 can be used to convert temperatures between Celsius and Fahrenheit. If a utility company charges a fixed monthly rate plus a constant rate for each unit of power consumed, a linear function will show the monthly cost of power. If the fixed rate is $25, and the cost for each unit of power is $0.02, the linear function is C = 0.02P + 25. The linear function I = 400C + 1,500 yields the total monthly income of a car salesman who makes a monthly base salary of $1,500 and receives...

...Application of linearfunctions in Economics (or) Application of straight lines in Economics
The linearfunction is one in which ‘y’ is the first degree expression in ‘x’, i.e., y = ax + b. The graph of this function is a straight line. The co-efficient of x represents the slope of the line. If a > 0, then the lines are upward sloping, and if a < 0, then the lines are downward sloping Let us explain...

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GRAPH OF LINEARFUNCTIONS
Teacher’s Guide
Description
This Teacher Support Material is designed to provide students with hands on activity relative to teaching linearfunctions.
Rationale
It has been observed that students find difficulty in graphing linearfunctions because students cannot relate previous knowledge of linear equations in their Intermediate Algebra to...

...Marian Small Lead Author Chris Kirkpatrick Authors Barbara Alldred • Andrew Dmytriw • Shawn Godin Angelo Lillo • David Pilmer • Susanne Trew • Noel Walker
Australia
Canada
Mexico
Singapore
Spain
United Kingdom
United States
Functions 11 Series Author and Senior Consultant Marian Small Lead Author Chris Kirkpatrick Authors Barbara Alldred, Andrew Dmytriw, Shawn Godin, Angelo Lillo, David Pilmer, Susanne Trew, Noel Walker Contributing Authors Kathleen...

...Computer Linear Algebra-Individual Assignment
Topic: Image Sharpening and softening (blurring and deblurring).
Nowadays, technology has become very important in the society and so does image processing. People may not realize that they use this application everyday in the real life to makes life easier in many areas, such as business, medical, science, law enforcement. Image processing is an application where signal information of an image is analyzed and manipulated to...

...MATHEMATICS: ASSIGNMENT - “Section” 5.1, page 182.
(1) Write the general form of a linearfunction involving five independent variables.
(2) Assume that the salesperson in Example 1 (page 177) has a salary goal of $800 per week. If product B is not available one week, how many units of product A must be sold to meet the salary goal? If product A is unavailable, how many units be sold of product B?
(3) Assume in Example 1 (page...

...LinearFunctions
There are three different ways to write linearfunctions. They are slope-intercept, point-slope, and standard form. There are certain situations where it is better to use one way than another to solve a problem. It is important to understand and comprehend the mechanics of these three forms so that you know what form to use when solving a problem.
The first form, point-slope, is written as y-y1=m(x-x1). M is the slope...

...of function is rightly considered as one of the most important in all of mathematics. As the point, the line, and the plane were the basic elements of Euclidean geometry, the dominant theory from the time of Ancient Greece until the Modern Age, the notions of function and derivative constitute the foundation of mathematical analysis, the theory that become central in the development of mathematics since then.
Several fields of business mathematics deal directly...

...The teacher's hypothesis is horribly inaccurate. First of all, Scenario A is the only linearfunction in the group consisting of A,B, and C. Scenario B is a function, but not linear. Scenario C is not a function.
Scenario A has all the criteria of a linearfunction. For every independent variable (aka “x” value or input) in the domain, there is one and only one dependent variable (aka output or...