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©1998 ThinkQuest
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©1998 ThinkQuest
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identity: |
An equation that is true for all elements of its domain. |
identity element: |
A number which added to or multiplied times any number in a set yields that same number in the set. |
identity properties: |
There are real numbers 0 and I such that for each real number a, a + 0, 0 + a = a and a x 1 = 1 x a = a. |
imaginary number: |
A complex number that is not real. |
inconsistent system of equations: |
A system with no soiution. |
increasing function: |
A function such that for any numbers a and b in the domain. if a > b, then f(a) > f(b). |
independent events: |
Two events not affected by each other. Two events A and B are independent if and only if P(A and then B) P(A) x P(B). |
independent variable: |
If the value of a depends upon the value of b, or if a is usually defined in terms of b, b is called the independent variable, and it is graphed on the horizontal axis. |
index: |
The number represented by n in nÖb. |
index of summation: |
The variable used in sigma notation. |
infinite geometric series: |
A geometric series with an infinitely large number of terms. |
infinite sequence: |
A sequence that does not have a last term. |
interquartile range: |
The difference between the upper and lower quartiles of a set of numbers. |
inverse functions: |
Functions and g are inverse functions if and only if f(g(x)) = g(f(x)) =x for all numbers x in the domains of both f and 9. |
inverse of a relation: |
Relation B is the inverse of relation A if it consists of the inverses of the individual ordered pairs in relation A. |
inverse variation: |
Two quantities x and y vary inversely if and only if there is a constant k. k ¹ 0, such thatY = K/X. |
irrational number: |
A real number that is not a rational number, i.e. cannot be expressed as the quotient of two integers. |
Note: The terms in this collection may not
be entirely accurate.
They are for reference only.
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