Q: How many independent variables should you have?

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Independent variables are those that you change in an experiment. Dependent variables are the ones that you measure in an experiment. Dependent variables are influenced by the independent variables that you change, so they are dependent upon the independent variable. Generally, experiments should have only one independent variable.

Every time the independent variables change, the dependent variables change.Dependent variables cannot change if the independent variables didn't change.

It is easier to control independent variables

control variables: the things that are not changing.Independent variables: the things that you change.Dependent variables: the things that are changed due to the independent variable

Independent variables are the input value of a function (usually x) and dependent variables are the output value of the function (usually y).

Related questions

There can only be one independent and one dependent variable. All other variables should be classed as control variables and must be kept constant to achieve a fair test.

It depends on the number of variables and their nature: 2 variables, both independent: either axis 2 variables, one independent: x-axis 3 variables, all independent: any axis 3 variables, 2 independent: x or y-axis. 3 variables, 1 independent: x-axis. and so on.

Constants stays the same independent variables is the variable that is being manipulated

the independent variable controls the dependent variables

Variables that do not change in an experiment are independent variables.

Variables that do not change in an experiment are independent variables.

how do u identify a independent variable

Constants stays the same independent variables is the variable that is being manipulated

An experiment involves three types of variable.The independent variable is the one you are investigating. It is the one which you deliberately vary in the experiment. You should only have one independent variable.The dependent variable is the variable which you measure to get your results. Often there is only a single dependent variable but there can be more.All other variables must be controlled ie kept constant so they do not change the result. There are usually many control variables in an experiment.

Independent Variables.

The test variable (independent variable) controls the outcome variable (dependent variable).

Independent variables are the input value of a function (usually x) and dependent variables are the output value of the function (usually y).