That's the independent variable.
A variable is a part of a term which can change. A coefficient is a numerical constant, associated with a variable. For example, in the term 3x^2 , 3 is the coefficient, while x is a variable.
Another term is Responding Variable
A term that has no variable part is usually called a constant.
There is no term other than independent variable.
If a term doesn't have a variable , then its probably a constant.
In an experiment, the manipulated variable is also known as the independent variable. An example of the term "manipulated variable" in a sentence would be, "The scientist sincerely hoped that the manipulated variable would produce a reaction in the dependent variable."
The dependent variable is the variable that is measured in an experiment.
the manipulated variable is the part of the experiment that is changed. the dependent variable is the part of the experiment that does not get changed(stays the same throughout the experiment), and the scientist use it to record the data.
A variable is a part of a term which can change. A coefficient is a numerical constant, associated with a variable. For example, in the term 3x^2 , 3 is the coefficient, while x is a variable.
The numerical multiplier of any term in an algebraic expression is a coefficient. The constant term is a coefficient which does not have a variable associated with it.
Pathophysiology
Expansionists -study island
Gerontologist
... is still a term. a term doesn't have to have a variable in it.
Treatment variable is another term for the independent variable.
experiment
Another term is Responding Variable