Intermidiate Algebra

Home > Preview

The flashcards below were created by user Anonymous on FreezingBlue Flashcards.

What is a variable?

A variable is a letter that represents a number
What is an algebraic expression?
- An algebraic expression is a number, variable or combination of the two connected by some mathematical operation like addition, subtraction, multiplication, division, exponents, and/or roots.
- ex: 2x + y, a/5, and 10 - r are all examples of algebraic expressions
How do you evaluate an expression?

evaluate an expression by replacing the variable with the given number and performing the indicated operation
Finding the value of an expression

When you are asked to find the value of an expression, that means you are looking for the result that you get when you evaluate the expression
Addition

sum, plus, add to, more than, increased by, total
Subtraction

difference of, minus, subtracted from, less than, decreased by, less
Multiplication

product, times, multiply, twice, of
Division

quotient divide, into, ratio