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under what conditions would you use graphing?
Weegy: Market research is all about statistics. A common type of graph that market researchers use is a scatter plot. This type of graph is made after a test is done on a group of people. [ For example, a group of people may be asked to take a quiz that will test their knowledge of recycling in the United States. By plotting the scores of these test takers on a coordinate plane, researchers can study how much people know about recycling and apply this to their market studies. They can also see which people were outliers (people at one extreme of the graph) and apply this knowledge to their work. Read more: Under What Conditions Would You Use Graphing? | eHow.com ] (More)
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Asked 3/13/2012 4:19:11 PM
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Under what conditions would you use Elimination? Substitution?
Weegy: The linear equations of one variable does not require substitution or elimination. We solve linear equation of one variable and one single equation by isolation of the unknown or variable to one side and knowns or numbers to the other side. [ The type of operations we do is (i) adding or subtracting equals to both sides, (ii) multiplying or dividing both sides by equals. But never multiply or divide by zeros thinking that zeros are equals. In solving equations with two or more variables we are dealing with more than one equations. Here we can use the technic of reducing the number of variables and the number of equtions either by elimination or substitution till we arrive at a single equation with a single variable. ] (More)
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Asked 3/13/2012 4:27:12 PM
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In solving a system of two linear equations or two functions by graphing what is meant by if the system is consistent or inconsistent? Please show me how to solve.
Weegy: Linear Simultaneous Equations with Two Variables In the previous module, linear equations with two variables were discussed. [ A single linear equation having two unknown variables is practically insufficient to solve or even narrow down the solutions for the two variables, although it does establish a relationship between them. The relationship is shown graphically as a line. Another linear equation with the same two variables may be enough to narrow down the solution to the two equations to one value for the first variable and one value for the second variable, i. e. to solve the system of two simultaneous linear equations. Let's see how two linear equations with the same two unknowns might be related to each other. Since we said it was given that both equations were linear, the graphs of both equations would be lines in the same two-dimensional coordinate plane (for a system with two variables). The lines could be related to each other in the following three ways: 1. The graphs of both equations could coincide giving the same line. This means that the two equations are providing the same information about how the variables are related to each other. The two equations are basically the same, perhaps just different versions or forms of each other. Either one could be mathematically manipulated to produce the other one. Both lines would have the same slope and the same y-intercept. Such equations are considered dependent on each other. Since no new information is provided, the addition of the second equation does not solve the problem by narrowing the solution set down to one solution. Example: Dependent linear equations 6x - 3y = 12 y = 2x - 4 The above two equations provide the same information and result is the same graph, i. e. ] (More)
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Asked 3/17/2012 11:01:57 PM
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In solving a system of two linear equations or two functions by graphing what is meant by if the equations in a system are dependent or independent?
Weegy: If the graph of the equations intersects each other at a point, then ordered pair corresponding to the point of intersection will be the solution to that system. [ In this case, the system will have exactly one solution. If a system has exactly one solution, then the equations are said to be independent. If the graph of the equations coincides, then all the points on the line will be the solution to that system. In this case, the system will have infinite number of solutions. If the system has infinite number of solutions, then the equations are said to be dependent. ] (More)
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Asked 3/17/2012 11:21:47 PM
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