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The use of x as a variable is extremely common, but it's not the only variable out there. Its common usage comes from geometry, where there are one, two, or three axes (plural of axis) upon which graphs are drawn and calculations are made. single-axis geometry uses the x-axis, two-axis geometry uses the x- and y- axes, and three-axis geometry uses x, y, and z. Thus, these letters are often used, in that order, in algebra and other mathematical disciplines to represent their variables.
Other common variable letters relate to their function, such as n for 'some number', w for a fourth spatial axis, t for time, a, b, and c for geometric angles, d for distance or diameter, and r for radius.
What else can I help you with?
What kind of variable is always changing?
the y variable always changes and x is constant
Is a variable minus a variable a monomial?
Not always. It could be a constant. For example x is one variable, and y = x-2 is another variable. Then x - y = x - (x-2) = 2.
Is a variable a variable expression?
Yes. A variable by itself, or anything that contains a variable, would be a variable expression (unless the variable cancels out, as in "x - x", which always has the same value).
What variable is always graphed as the independent variable?
x is used a lot to represent an independent variable. When time is the independent variable t is often used as well.
Why is x always be a variable?
It is very common to use, but it is not the only variable you can use.
Previous Next Help Exit On a graph where is the independent variable placed?
The independent variable is always on the x-axis of a coordinate plane. The dependent variable is always on the y-axis. This is true because y always depends on x.
In the ordered pair x y the independent variable corresponds to?
By convention, 'x' is almost always the independent variable, but it doesn't have to be.
Is the x the independent variable?
In an experiment or mathematical function, the independent variable is the one that is manipulated or changed to observe its effect on another variable, known as the dependent variable. If "x" is the variable being changed or controlled, then yes, "x" is the independent variable. However, if "x" depends on or is influenced by another variable, then it is not the independent variable. Always consider the specific context to determine the role of "x."
Is the factor that may change in response to the independent variable?
Since y depends on x and x is the independent variable, y has to be the dependent variable. That means that y always changes because of x.
What is the slope of the graph of the equation x equals 3?
x=3 means that the x variable always stays constant, so the y variable can change as much as it wants, but x will always be 3. on a graph, this would like a vertical line. (It should be perpendicular to the x variable's line...if that helps a visual:P)
What is the factor that may change in response to the independent variable?
The dependent variable may change in response to the manipulated variable.
Which axis holds the independent variable?
An independant variable should always be on the x-axis of a graph and the dependant variable on the y-axis.
