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Rational Number

Any number that can be expressed as a ratio of two integers. Example; 6 can be expressed as 6/1, and 0.5 as 1/2.

whole number

0, 1, 2, 3, 4, 5...

Integers

the set of positive whole numbers and their opposites(negative numbers) and 0

Irrational Numbers

any number that cannot be expressed as a fraction.

Hypotenuse

in a right triangle, the side opposite the right angle

Leg of a right triangle

the shorter sides of the triangle that form the triangle

Right Triangle

A triangle with one right angle.

Pythagorean Theorem

in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs

Venn diagram

A diagram that uses circles to display elements of different sets. Overlapping circles show common elements.

Perfect Square

the number that forms when two same numbers are multiplied together

Square Root

when multiplying a number by itself to get a square number

coordinate plane

A plan formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y-axis.

ordered pair

A pair of numbers that can be used to locate a point on a coordinate plane.

Converse

(noun) A statement that switches the hypothesis and conclusion

quadrants

Four regions into which a coordinate plane is divided by the x-axis and the y-axis

zero exponent

It's value is always 1.

negative exponent

Means to write the reciprocal of the base and use a positive exponent

Scientific notation

where a number is written into 2 parts first just the digits (with decimal point after first digit) followed by ×10 to a power

exponent

A mathematical notation indicating the number of times a quantity is multiplied by itself

Base

the number that is written with an exponent

power

a number produced by raising a base to an exponent