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semester 1 vocab
chapters 1-4 math vocab
| Term | Definition |
|---|---|
| absolute value | the distance the number is from zero on a number line. |
| additive inverse | two integers that are opposites. the sum of an integer and its additive inverse is zero |
| integer | any number from the set (....-4,-3,-2,-1,1,2,3,4...) where...means continues without end. |
| opposites | 2 integers are opposites if they are represented on the number line by points that are the same distance from zero, but on opposite sides of zero. The sum of 2 opposites is zero. |
| zero pair | the result when one positive counter is paired with one negative counter. the value of a zero pair is zero. |
| bar notation | in repeating decimals, the line or bar placed over the digits that repeat. |
| rational numbers | the set of numbers that can be written in the form A/B, where A and B are integers and B does not equal zero. |
| repeating decimal | the decimal form of a rational number |
| terminating decimal | a repeating decimal which has a repeating digit of zero. |
| Additive identity Property | the sum of any number and zero is the number. |
| algebra | a branch of mathematics that involves expressions with variables. |
| algebraic expression | a combination of variables, numbers, expressions, and at least one operation. |
| Associative property | the way in which numbers are grouped does not change their sum or product. |
| coefficient | the numerical factor of a term that contains a variable. |
| Commutative Property | the order in which two numbers are added or multiplied does not change their sum or product. |
| constant | a term that does not contain a variable. |
| factor | to write a number as a product of its factor. |
| like terms | terms that contain the same variables raised to the same power. Example- 5x and 6x are like terms. |
| Multiplicative Identity Property | the product of any number and 1 is the number. |
| Multiplicative Property of Zero | the product of any number and zero is zero. |
| term | a number a variable or a product or quotient of numbers and variables. |
| variable | a symbol usually a letter used to represent a number in mathematical expressions or sentences. |
| equation | a mathematical sentence that conations an equal sign stating that two quantities are equal. |
| solution | a replacement value for the variable in an open sentence. A value for the variable that makes an equation true. |
| Distributive Property | to multiply a sum by a number, multiply each addend of the sum by the number outside the parentheses. For any numbers a, b, and c, a(b+c)= ab + ac and a(b - c) = ab - ac. |
Created by:
collinb
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