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How do you find the excluded value when there isn't a variable in the denominator?
Wiki User
∙ 9y ago
There could be a variable in the numerator which is not defined. For example, [tan(x)]/3 has no variable in the denominator but the expression is not defined for x = pi/2, for example (90 deg).
Wiki User
∙ 6y ago
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What is the result of substituting a value for a variable in a function?
To find the value of the other variable
What is a characteristics of a dependent variable?
The variable that depens on a number or anther variable to find it's value.
What is the variable used to predict another variable called?
It is called the independent variable. For example if you are trying to find y: y = x+1 X is the independent variable, and Y is the dependent variable. The value of Y, depends on the value of X.
How do you find the value of expressions?
Two steps.1) Replace any variable by its value. 2) Do the indicated calculations.
A number multiplied by a variable?
A number, multiplied by a variable is part of an Algebraic equation. A person can find out the value of the variable if they divide each side by the number that is next to the variable. For example, if the equation is 5x = 60, divide each side by 5 and the answer is x = 12.
How do you find the excluded values of variables?
you put the fraction in simplest form (the numerator and denominator have no common factors besides one) then you find what number your variable should be to make the denominator 0. this is excluded value b/c your denominator can never equal 0 the number you found is your excluded value ex. 4 ------ Your excluded value is 3 because 3(3-3)=0 x(x-3)
Explain how to find restrictions on the variable in a rational equation?
Substitute the variable in the denominator for a value that will make the denominator have a value of 0 or an imaginary number
How do you find the denominator of a fraction if you know the numerator and the value?
Denominator = Numerator/Value
What is it called when you have to set the denominator equal to 0 so you can find what the soultion can not be?
you are finding values to be excluded from the domain.
What is the result of substituting a value for a variable in a function?
To find the value of the other variable
How do you find the value of a variable of a trapezoid?
The answer will depend on what aspect is the variable.
How do you find the value of an algebraic expression?
Take the value of each variable in the expression and replace the variable by its value. Then do the math!
How find the excluded value of x for a polynomial expression?
Use factorials.
What is a characteristics of a dependent variable?
The variable that depens on a number or anther variable to find it's value.
How do you solve simultanious equations?
By eliminating or substituting one of the variables in the two equations in order to find the value of the other variable. When this variable is found then substitute its value into the original equations in order to find the value of the other variable.
How do you find the value of a variable of a proportional ratio?
Cross multiply then solve for the variable.
How do you find the value of a ratio?
You divide the numerator of the ratio by its denominator.
