|
Acute Angle
|
An angle which measures less than 90 degrees. |
|
Addition
|
The operation of increasing one number by a certain amount to get a sum. |
|
Algebra
|
A branch of mathematics in which variables are substituted for unknown values to solve a particular problem. |
|
Angle
|
The measure of the distance between two values that share a common point (measured in degrees). |
|
Area
|
The amount of space taken up by a two-dimensional figure. |
|
Arithmetic
|
A general area of math dealing with addition, subtraction, multiplication, and division. |
|
Associative Property
|
Basic property of math that applies to certain operations and says that the order of the parenthesis does not matter, i.e. (4+5)+3 = 4+(5+3) |
|
Abscissa
|
The x-coordinate. In the point (6,3), the abscissa is 6. |
|
Absolute Value
|
The distance away from the origin. This means the positive value of a number. For example, the absolute value of -6 is 6. |
|
Additive Inverse
|
Two numbers that equal 0 when added together. The numbers 14 and -14 are additive inverses of each other. |
|
Adjacent Angles
|
Two angles which share a common side and the same vertex. |
|
Altitude
|
The distance from the base of a figure to the highest point in the figure, especially in a triangle. |
|
Amplitude
|
Half the distance from the highest point to the lowest point. The amplitude of a normal sine curve is 1, since the distance between top and bottom is 2. |
|
Antiderivative
|
A function who\'s derivative is the given function. Given a function like f(x) = 4x, the antiderivative F(x) = 2x^2. |
|
Arithmetic Mean
|
The average of a set of numbers. The arithmetic mean of 8 and 4 is (8+4)/2, or 6. |
|
Arithmetic Sequence
|
A sequence of numbers formed by adding a common term. The sequence of 4,7,10,13... is arithmetic because it is formed by adding 3 over and over. |
|
Axis of Symmetry
|
A line that divides a figure into two perfect mirror images of each other. The diameter of a circle is one of many lines of symmetry. |
