Algebra 1 Chapter 1
Terms
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- Expression
- Made up of numbers, variables and operations
- Open Sentence
- An equation or inequality that contains and algebraic expression
- Variable
- A letter used to represent 1 or more numbers
- Unit Rate
- A rate in which the denominator of the fraction is 1 unit
- Rate
- A fraction that compares 2 quantities measured in different units
- Function
- Consists of 2 sets called domain containing numbers called inputs and range containing numbers called outputs
- Evaluate
- To find the value of an expression
- Base
- The whole number or expression that is used as a factor in a repeated multiplication
- Algebraic Expression
- An expression that includes at least 1 variable
- Order of Operations
- To evaluate an expression involving more than 1 operation
- Exponent
- Represents the number of times the base is used as a factor
- Inequality
- A mathematical sentence formed by placing one of the symbols less than, greater than, or equal to between 2 expressions
- Relation
- Any pairing of a set of inputs with a set out of outputs. Every function is a relation but not every relation is a function unless if for every input there is exactly 1 output
- Numbers
- Representations of a quantity
- Verbal Model
- Describes a real world situation using words as labels and using math symbols to relate the words
- Equation
- A mathematical sentence formed by placing an equal sign between 2 expressions
- Power
- An expression that represents repeated multiplication of the same factor
- Formula
- An equation that relates 2 or more quantities