"Random" Definitions
Two parallel lines that, in reference to a number, indicate the positive number that describes the distance on a number line of the graph of the number from the origin.
Absolute Value
An angle whose measure is between 0 and 90 degrees.
Acute angle
A rule for exponents: If m, n, and x are real numbers and x does not equal zero, then xm * xn = xm+n
Product rule for exponents
The sum of a set of numbers divided by the number of numbers in the set. The "average"
Mean
A mapping that pairs each member of a set called the domain with exactly one member of another set called the range.
Function
The number or quantity under the fraction bar in a fraction; i.e. the divisor in a fraction. The "b" in the fraction a/b.
Denominator
The side opposite the right angle in a right triangle
Hypotenuse
A property of real numbers that notes that, for any real numbers a, b, and c, a(b+c) = ab + ac
The distributive property
A method of displaying data using a bar graph that represents the frequency of occurrence of data values.
Histogram
The set of numbers which are permissible replacement values for the independent variable of a function.
Domain of a function
The number that indicates that number of times the base of a power is to be used as a factor.
Exponent
A triangle that has at least two sides of equal length.
Isosceles triangle
A property of real numbers such that, for any real numbers a, b, and c, if a > b, then a + c > b + c
Additive property of inequality
A method of displaying data using certain digits as "stems" and the remaining digit or digits as "leaves"
Stem-and-leaf plot
A standard method of locating points in the plane that uses pairs of numbers denoting distances along two fixed intersecting number lines, called the axes. The axes are perpendicular to each other and intersect at the origin of both axes. The system is named for the French mathematician René Descartes. Also called a rectangular coordinate system.
Cartesian coordinate system
A mathematical statement comparing quantities that are not equal
Inequality
a2 + b2 = c2
The Pythagorean Theorem
A property of real numbers that notes that, for any real numbers a and b,
a + b = b + a and a * b + b * a
The commutative property
The middle number in a set of numbers when they are arranged in order from the least to the greatest. If there is an odd number of numbers in the set, the middle number. If there is an even number of numbers in the set, the average of the two middle numbers.
Median
y = mx + b
Slope-intercept form
A method of writing a number as the product of a number between 1 and 10 with a power of 10. For example, 3241.5 is 3.2415 x 103 , and .00063 is 6.3 x 10-4
Scientific notation
Lines in the same plane that do not intersect
Parallel line
A property of real numbers that notes that, for any real numbers a, b, and c, (a + b) + c = a + (b + c) and (a * b) * c = a * (b * c)
Associative property
The sum of the products of values and their weights, divided by the sum of the weights
Weighted average
A beginning point. On a number line or coordinate plane, the number zero is associated with this point
Origen
Any factor or any product of factors of a product
Coefficient
Two lines which intersect at right angles
Perpendicular lines
A rule for evaluating products of radical expressions: If m and n are nonnegative real numbers, then the square root of m times the square root of n equals the square root of m * n, and the square root of m*n equals the square root of m times the square root of n
The product of square roots rule
The difference between the largest number and the smallest number in a set of numbers
Range
A number that is associated with a point on a graph
Coordinate