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When you have an algebraic expression with variables in it, you need to know the the value of each variable. The value of the expression is found by replacing the variables with their values and simplifying.
For example, evaluate 2xy-3x if x=5 and y=-1.
2xy-3x = 2*5*(-1) -3*5 = -10-15 = -25.
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What does it mean to evalutate the expression?
Replace each variable in the expression by its value and then find the value of the expression.
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!
What is the value of the expression when x9?
The answer will depend on the expression - which is not given!
How do you evaluate an algebraic expression when I know the value of each variable?
Replace each variables in the algebraic expression by its [known] value and calculate the value (ie evaluate) of the algebraic expression.
The value that results from the substitution of a given input into an expression or function?
The value that results from the substitution of a given input into an expression or function is the output. The value substituted into an expression or function is an input.
What is the value of the exponential expression 36.5?
36.5 is not an exponential expression! Its value is 36.536.5 is not an exponential expression! Its value is 36.536.5 is not an exponential expression! Its value is 36.536.5 is not an exponential expression! Its value is 36.5
What does it mean to evalutate the expression?
Replace each variable in the expression by its value and then find the value of the expression.
To find the value of an expression you need to?
to find the value of an expression, you need to
What is a expressions that simplifies to the same expression or value?
An equivalent expression.
When you find the numerical value of an expression you what the expression?
You evaluate the expression !! :)
What is a variable expression that has a decreasing value as the value of the variable increases?
what is a variable expression that has a decreasing value as the value of thevariable increases?
What is it called to find the value of an algebraic expression?
To find the value of an algebraic expression is to evaluate it.
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!
What is 18 minus x?
Well, isn't that a happy little math problem! When we have 18 and we take away a little x, we're left with a beautiful number. Just imagine x as a fluffy cloud floating away, and you'll find the answer in no time. Remember, there are no mistakes in math, just happy little accidents!
What is the value of the expression when x9?
The answer will depend on the expression - which is not given!
How do you evaluate an algebraic expression when I know the value of each variable?
Replace each variables in the algebraic expression by its [known] value and calculate the value (ie evaluate) of the algebraic expression.
The value that results from the substitution of a given input into an expression or function?
The value that results from the substitution of a given input into an expression or function is the output. The value substituted into an expression or function is an input.
