Into to Algebra Terms
Terms
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- What is a variable?
- a letter or symbol that stands for a number
- Numerical Expression
- an expression that names a particular number
- Variable Expression
- an expression that contains a variable
- Equation
- A mathematical sentence that contains an equal sign
- Open sentence
- a sentence that has one or more variables
- Domain
- a given set of numbers that may repeat a variable
- Solution
- any value of a variable that makes a open sentence true
- solution set
- the set of all solutions to an open sentence
- digits
- numbers 1,2,3,4,5,6,7,8,9
- whole numbers
- 0,1,2,3.....
- intergers
- -2,-1,0,1,2
- real number
- all positive and negative numbers and zero
- graph
- point on a number line
- coordinate
- number paired with a point on a number
- opposites
- numbers and different sides of zero on a number line that same distance from zero
- absolute value
- distance a number is from zero
- What is the Order of Operations
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1. Grouping Symbols ()
2. Exponents or Powers
3. Division or Multiplication (Left to Right)
4. Addition or Subtraction (Left to Right)