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Ch.1 - Algebra
Term | Definition |
---|---|
Equation | mathematical sentence that uses an equal sign |
Simplify | replace an expression with its simplest name |
Exponent | tells how many times a number is used as a factor |
Power | has two parts - a base and an exponent |
Evaluate | substitute a given number for each variable |
Rational Number | numbers like 5, 7.3, -2.994, -1/8 |
Irrational Number | numbers like pi or the square root of 2 |
Absolute Value | distance from zero; written between two vertical bars |
Opposites | numbers like 5 and -5 |
Reciprocals | 2/3 and 3/2 |
Like terms | have the same variable factors (ex. 11q - q) |
Ordered pair | Identifies the location of a point ( 2 , 3 ) |
Coefficient | numerical factor when a term has a variable (ex. the 12 in 12y) |
Term | Number, variable, or product/quotient of a number and variable (ex. 12x + 7y + 3 has three terms) |
Order of Operations | PEMDAS |