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Chapter 3
N/A
16
Mathematics
8th Grade
11/07/2012

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Cards

Term
Perfect Square
Definition
Numbers that are squares of integers.
Term
Square root
Definition
A number of another equal value.
Term
Radical sign
Definition
A sign used to indicate a positive square root.
Term
Irrational number
Definition
A number that is not rational.
(Ex. 127.2792206 goes on and on, but does not repeat, and is the square root of 16,200, but since it goes on without repeating, it can't be written as a fraction.
Term
Real number
Definition
The set of rational and irrational numbers together.
Term
legs
Definition
The side that form the right angle.
Term
hypotenuse
Definition
The side the opposite of the right angle.
Term
Pythagorean Theorem
Definition
The Theorem that describes the relationship between the lengths of the legs and the hypotenuse for any right triangle.
Term
Coordinate plane
Definition
A grid.
Term
Origin
Definition
The point of intersection of the two number lines.
Term
y-axis
Definition
The vertical number line.
Term
x-axis
Definition
The horizontal number line.
Term
quadrants
Definition
The four sections of the coordinate plane.
Term
ordered pair
Definition
Any point on the grid, marked with 2 axis. Ex, (2(X),5(Y))
Term
x-coordinate
(abscissa)
Definition
The first number in the pair.
Term
y-coordinate
(ordinate)
Definition
The second number in the pair.
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