Yes. Although it can also be used for constants whose value is not yet known.
they show the magnitude
a variable
Which of the following are steps in practical problem solving? Assign an identifying variable to the quantity to be found. Make a guess at the value of the variable. Write a sentence stating conditions placed on the quantity. Check if the value is correct. Solve the sentence for the variable.
In mathematical expressions, a variable (a letter used to represent a certain value) represents an unknown or changeable value. It is often the variable x.
A variable that depends on one or more other variables. For equations such as y = 3x - 2, the dependent variable is y. The value of y depends on the value chosen for x. Usually the dependent variable is isolated on one side of an equation. Formally, a dependent variable is a variable in an expression, equation, orfunction that has its value determined by the choice of value(s) of other variable(s).
Nothing specifically is "done" to the variable; variables are generally used to represent either:* A quantity that is initially unknown (and should be solved for), or * A quantity that can be anything - to analyze what happens no matter what a certain value is.
A variable is a quantity which changes its value through out the program or its lifetime. But a constant is a quantity which does not change its value through out its life time. There are 5 basic constants.
A variable
Yes, a value can represent a quantity or amount.
It is variable
It is variable
If you mean a variable then it is an unknown quantity that can represent many values until its specific value is determined usually by solving an equation.
they show the magnitude
a variable
The change in the input value is equalto the change in the output value.
the output of a function; a variable whose value depends on the value of the input.
the output of a function; a variable whose value depends on the value of the input.