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This talks about why we need two equations to solve for two unknown values, and then demonstrates how to add two equations together to eliminate one varaible and solve for the other one, then find…
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This shows the method of using the point-slope form to write the equation, then solving that form for y to get y = mx + b.
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The informaton given here can be entered directly into the y = mx + b or slope-intercept form. Then the y-intercept is used as a starting point where you apply rise over run to the given slope to…
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Another demo on how to use the y-intercept to start a graph of a linear equation and then use the slope to find other points on the graph. It finishes with showing the line representing all of the…
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This explains how to use the slope and y-intercept to determine points on the line graph of a linear equation in two variables and then draws the straight line graph.
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Presents a compound inequality where both sides have to be solved for the variable first, and then shows how to graph the simplified results
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Shows one example of solving a iinear inequality in two steps.
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This states the Multiplicative Propery of Inequality, then demonstates how it works with two examples.
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Shows how to take the descriptive set builder notation and write a roster set to represent the same one.
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It's just what the title says. We use opposite operations on one side to eliminate values that are with the variable and perform the same operations to the other side of the equals sign to keep…
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Gives the three possible answers that result from calculating a discriminant, then demonstratew with two different quadratic equations.
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Two examples of how to deal with negative fractional exponents
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Shows how these forms are interrelated
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Single fractions set equal to each other forms a proportion. When presented with this, it can be "cross multiplied" to eliminate the fractions. The resulting equation has a term with the…
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Shows cross multipication of two single fractions set equat to each other to create a new equation that has no fractions and is then solvable by the typical methods.
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Shows how to simplify a large fractions with fractioins embedded in it. The simplest way involves multiplying all small fractions by their least common denominator so the individual denominators…
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