Term | Definition |
Real Number | All numbers (both rational and irrrational) |
Natural Number | Counting numbers |
Whole Number | Counting numbers including zero |
Integer | Whole numbers and their opposites |
Rational Number | Numbers that can be written as a fraction, repeating, or terminating decimal |
Irrational Number | Numbers that can not be written as a fraction,repeating, or terminating decimals |
Square Root | One of two equal factors of a number |
Repeating Decimals | Decimals whose digits repeat in groups of one or more |
Terminating Decimals | Decimals whose digits end |
Variable | A letter that represents an unknown value |
Numerical Expression | A mathematical expression that has a combination of numbers and at least one operation symbol |
Algebraic Expression | A mathematical expression that has a combination of numbers, letters, and at least one operation symbol |
Equation | A mathematical sentence that contains an equal sign |
Simplify | Solve a numerical expression |
Evaluate | To find the value of an expression by replacing (substituting) the variables with numbers |
Power | Numbers written using exponents that represent repeated multiplication |
Order of Operations | Rules that are followed when more than one operation is used in an expression |
Solve | The process of finding valus of the variables that make the equation true |
Solution | Values that are true to an equation |
Inverse Operations | Operations that undo each other (addition:subtraction, multiplication:division) |
Open Sentence | An equation that contains one or more variables |
Pythagorean Theorem | Describes the relationship between the lengths of the legs and the hypotenuse of any right triangle |
Right Triangle | A triangle with one right angle |
Hypotenuse | Side opposite the right angle and known as the longest side |
Legs | The sides that form the right angles |
Coordinate Plane | Formed by the intersection of two number lines that produces four right angles |
Origin | The point of intersection of the x and y axis |
Quadrants | The four sections created by the intersection of the x and y axis |
X-axis | The horizontal number line |
Y-axis | The vertical number line |
Ordered Pair | The x and y values graphed on the coordinate plane |