Manipulated variable refers to variables in an experiment or testing environment where a variable is manipulated to test for a change in outcomes. Manipulated variables are used in many different scenarios, including computer programming, system testing and drug testing.
Know MoreIn computer programming, variables are manipulated by using functions and commands. Addition, subtraction and testing for a value are all types of variable manipulation. You may also manipulate variables when debugging the application to test your error handling or outcomes.
The best example of manipulated variable testing is the use of placebos in drug testing. When measuring the rate of a patient's recovery, the main variable is the medication that is being tested. The variable is manipulated between the patient taking the tested medication, a placebo or an alternative treatment.
Learn more about AlgebraElimination is a method for solving a system of two or more algebraic equations by transforming the system so that one of the variables cancels out. It is sometimes called the addition method because it involves adding equations together.
Full Answer >Elimination in mathematics refers to the elimination method, also called the addition method, which is used to solve basic algebraic problems by comparing two equations in order to find what their variables equal. This method uses two equations to cancel out a variable in one of the equations.
Full Answer >According to South Eastern Louisiana University, to solve for the x and y intercepts in a linear equation of the form y = mx + b, set one of the variables, either x or y depending on the desired intercept, equal to zero, and solve algebraically.
Full Answer >Solve simple mathematical proportions by writing the ratios as fractions, setting these fractions equal to each other, cross-multiplying and then solving for any variables. A simple ratio to solve is 2:x = 3:9, which means "2 is to x as 3 is to 9."
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