## Glossary of 8th Grade Georgia Mathematic Standards Math Terms

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- additive inverse
- Two numbers with a sum of zero.

- alternate exterior angles
- Nonadjacent exterior angles found on opposite of the transversal.

- alternate interior angles
- Nonadjacent interior angles found on opposite sides of the tranversal.

- arithmetic sequence
- A sequence of numbers in which each term after the first is the result of adding a fixed number (called the common difference) to the previous term.

- complementary angles
- Two angles whose measures add to equal 90 .

- corresponding angles
- Pairs of nonadjacent angles that lie on the same side of a transversal of two lines and in corresponding positions.

- exponent
- A number that shows how many times a base number is used as a factor.

- function
- A relationship in which each member of the domain is paired with exactly one member of the range. A number of a domain is an input and the related number of the range is an output.

- hypotenuse
- The side opposite the right angle in a right triangle.

- inequality
- Mathematical sentence that contains or uses one of the symbols <, >, , , or =.

- irrational number
- A number that can be represented by a nonrepeating, nonterminating decimal.

- legs
- The two shorter sides of a right triangle. Either of the two sides that form the right angle of a right triangle.

- like terms
- Expressions that contain the same variables.

- linear equation
- Any equation whose graph is a straight line.

- multiplicative inverse
- The reciprocal of a number.

- Pythagorean Theorem
- In any right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs.

a + b = c

- radical sign
- The symbol used to indicate a nonnegative square root.

- rational number
- Any number you can write as a quotient of two integers a/b, where b is not zero.

- relation
- A set of ordered pairs.

- Scientific notation
- A way of reexpressing a number so that it is written as the product of a number greater than or equal to 1 and less than 10, and a power of 10.

- sequence
- A set of numbers that follow a pattern.

- significant digits
- Digits that represent an actual measurement.

- slope
- A ratio that represents the tilt of a line (the change in y to the corresponding change in x).

- square root
- A number that when multiplied by itself equals the given number.

One of the two equal factors of a number.

- supplementary angles
- Two angles whose sum of their measures is 180 .

- system of linear equations
- Two or more linear equations.