x # Algebra I

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Updated On 02 Feb, 19

##### Overview

Contents:
Find the domain of a rational expression - Multipling Polynomials - intro to polynomials - add and subtract polynomials - Simplifying algebraic expressions - Like terms - Combine Like terms - Properties of negative exponents - exponents with integers - exponents - exponent properties - Solving a system of equations by addition ellimination 3.mov - Solve a system by substitution - Solve a system by graphing -parallel and perpendicular lines - check if a point is a solution to a system - 3 types of systems - Vertical and horizontal line and their graphs - Graph and find X and Y intercepts - graph a line using a point and a slope - find the slope of a line between two points

Graphing equations in y=mx+b - Find the equation of a line with a point and a slope-derivation of the equation of a line -Meaning of slope-function evaluation and word problems - function domain and range - find the domain of a rational expression - Evaluate a function from a graph - derivation of the slope formula - Vertical Line test - Evaluate functions function notation and conection with linear graphs.mov - functions and relation - Compound Inequalities - systems of inequalities - factoring leading coefficient - System of three variables - AC factoring method - The Quadratic Formula.mov - Solving Linear Equations - Using the General Factoring Strategy - Solving Linear Equations - Factoring The Hard Ones -Factor special forms

## Lecture 43: System of three variables.mov

4.1 ( 11 )

###### Lecture Details

An example of solving a system of three equations with three variables. Their is an error in this example but with some editing you will be able to work through it. In fact it will be good for you find the error and compare your answer with the correct answer it is presented at the end. I missed a minus sign. These math shorts are single take shows I feel it makes them more authentic. For more math shorts go to www.mathbyfives.com.

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Excellent course helped me understand topic that i couldn't while attendinfg my college. 