Algebra

Math Review of Systems of Inequalities

Math Review of Systems of Inequalities 150 150 Deborah

Overview Systems of inequalities can be solved in much the same way as linear equations. If there is a solution in which the systems intersect, it will be in terms…

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Math Review of Absolute Value Functions

Math Review of Absolute Value Functions 150 150 Deborah

Overview Absolute value functions are functions in which f(x) = │x│. They are important in a number of settings, including the study of error and probability functions. Definition of Absolute…

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Math Review of Intersection and Union of Sets

Math Review of Intersection and Union of Sets 150 150 Deborah

Overview The intersection of sets refers to the elements that both sets have in common, while the union of sets refers to the elements that both sets have together.  If…

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Math Review of Weighted Averages and Mixtures

Math Review of Weighted Averages and Mixtures 150 150 Deborah

Overview: Calculating the values for weighted averages and mixtures is common to many fields, from education to chemistry.  The calculations for both require attention to the amount of each quantity…

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Math Overview of the Distributive Propery

Math Overview of the Distributive Propery 150 150 Deborah

Overview: The Distributive Property in math can be used to solve equations by combining like terms.  It is another tool to simplify complicated problems by using common patterns of multiplication…

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Math Review of Factorials

Math Review of Factorials 150 150 Deborah

Overview: Factorials involve all possible outcomes of an event.  They are calculated by multiplying the number of possible events times the number of events minus 1 times the number of…

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Math Review of Functions

Math Review of Functions 150 150 Deborah

Overview: In a mathematical function, each value of x (the domain) can be matched with only one value of y (the range).  If there is one value for x, but…

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Math Review of Using Quadratic Equations

Math Review of Using Quadratic Equations 150 150 Deborah

Overview: Solving quadratic equations is an important skill in algebra.  Some methods of solving quadratic equations include factoring, taking the square root of both sides, completing the square, and using…

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Math Review of Fitting a Line to Data

Math Review of Fitting a Line to Data 150 150 Deborah

Overview: When data points are plotted onto a standard graph, that is only the first step in determining the nature of the relationship.  The next step is to determine if…

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Math Review of Direct, Inverse, Joint, and Combined Variation

Math Review of Direct, Inverse, Joint, and Combined Variation 150 150 Deborah

Overview: Equations that describe the relationship between two variables in a sentence express the variation between those variables.  Examples of types of variation include direct, inverse, joint, and combined variation.…

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