| Term | Definition |
|---|
| real numbers | all numbers |
| rational numbers | 1/2, 0.3, 1, 2 2/3, -5/4, -1.07 |
| integers | -2, -1, 0, 1, 2 |
| whole numbers | 0, 1, 2, 3 |
| natural numbers | 1, 2, 3 |
| irrational numbers | -square root of 3, pi, cube root of 40 |
| relation | set of pairs of input and output values |
| function | relation in which each element of the domain is paired with exactly on element of the range |
| domain | set of all inputs, or x-coordinates, of the ordered pairs |
| range | set of all outputs, or y-coordinates, of the ordered pairs |
| slope formula | y2 - y1/x2 - x1 |
| point slope form | y - y1 = m(x - x1) |
| slope intercept form | y = mx + b |
| standard form | ax + by = c |
| reflective property | a = a |
| symmetric property | a = b then b = a |
| transitive property | a = b and b = c, then a = c |
| direct variation | y = kx, k not equal to 0 |
| constant variation | k = y/x |
| absolute value function | f(x) = Imx + bI + c |
| vertex in absolute value function | (-b/m, c) |
| independent system | intersecting |
| dependent system | coinciding lines, no unique solution |
| inconsistent system | parallel lines, no solution |
| matrix | row x column |
| matrix | 1st row x 1st column, 1st row x 2nd column, 2nd row x 1st column, 2nd row x 2nd column |
| vertex form of a quadratic function | y = a(x - h) squared + k |
| standard form of a quadratic equation | ax squared + bx + c |
| imaginary number | square root of -1 |
| quadratic formula | x = -b +- square root of b squared - 4ac/ 2a |
| degree 0 | constant |
| degree 1 | linear |
| degree 2 | quadratic |
| degree 3 | cubic |
| degree 4 | quartic |
| degree 5 | quintic |
| sum of cubes | a cubed + b cubed = (a + b)(a squared - ab + b squared) |
| difference of cubes | a cubed - b cubed = (a - b)(a squared + ab + b squared) |
| permutation | an arrangement of items in a particular order |
| combination | selection in which order does not matter |
Combine with other sets
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