Notes
Linear Equations & Applications
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What is a Linear Equation?
A Linear Equation has to be able to be written in the form ax+b=0
a and b cannot equal 0
a and b have to be Real Numbers
How to Solve Linear Equations
Get rid of ( )
Collect like terms on each side
Add/Subtract terms from side to side
Divide to find x
Identities & Contradictions
An Identity has the solution set of all real numbers eg. 2x + 12 = 2(x + 6) = 0+0
Contradiction has no real solution. eg. 12=13
Formulas to Remember rate(time) = distance
(strength of solution1)(liters of solution1) + (strength of solution2)(liters of solution2) = (strength of total solution)(liters of total solution)
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- Bachelors Degree Pre Calculus (Chapter 1: Equations & Inequalities) Note on Linear Equations & Applications, created by Rachel Osborne on 22/01/2016.
- Created by
- Rachel Osborne · Jan 2016
- Updated
- Feb 19, 2016
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