MATH VOCABULARY

By: Keely Hunter6th period Tecnology

Integers

Any whole number and/or the additive inverse of a whole number is an integer

Rational Numbers

A number that can be written as a fraction, or as finite or repeating decimals. The square root of 2 (1.414 213 6...) is not a rational number.

Scientific Notation

A representation of very large or very small numbers as the product of two factors: a×10n, where 1 < a < 10.For example, the speed of light, 299,790,000 (m/s), can be written as 2.9979×108 (m/s).

Perfect Square

A number whose square root is an integer.For example, 4 is a perfect square because its square root is the integer 2.

Irrational Number

A number that cannot be expressed as a fraction. Examples include some square roots such as 21/2 and 31/2, and numbers such as (the ratio of the circumference of a circle to its diameter).

Real Numbers

All the numbers that includes all rational and irrational numbers.

Density Property

The property that states that there always exists another rational number between any two given rational numbers. This means that the set of rational numbers is dense.

Adjacent Angles

Two angles that share the same vertex and have one side in common between them.

Coefficient

The number part in front of the non-numerical symbol(s) in an algebraic expression, signifying multiplication. For example, the number 4 in the expression 4xy is a coefficient.

Distance Formula

The distance between two points (x1, y1) and (x2, y2) in the Cartesian coordinate system can be given by:[(x1 - x2)2 + (y1 - y2)2]1/2

Domain

The set of all possible input values for a function or relation

Hypothenus

The side opposite the right angle in a right triangle.

Legs Of A Right Triangle

Either of the two sides that form the right angle in a right triangle or one of the two congruent sides in an isosceles triangle.

Rational Numbers

A number that can be written as a fraction, or as finite or repeating decimals. The square root of 2 (1.414 213 6...) is not a rational number.

Range

The difference between the maximum and minimum values in a set of data.

Slope

Another name for gradient.

Scientific Notation

A representation of very large or very small numbers as the product of two factors: a×10n, where 1 < a < 10.For example, the speed of light, 299,790,000 (m/s), can be written as 2.9979×108 (m/s).

Prism

A space figure with two parallel polygonal bases that are the same shape and the same size.

Scatter Plot

Data that is plotted as points on a graph to show a possible relationship between two sets of data.

Slope Intercept Form

An algebraic equation, such as y = 2x + 7 or 3x + 2y - z = 4, in which the highest degree term in the variable or variables is of the first degree. The graph of such an equation is a straight line if there are two variables.