| A | B |
|---|
| algebraic expressions | Expressions that are made up of variables, numbers, grouping sym- bols, operation signs, and exponents. |
| axis of symmetry | A line in the plane of a graph such that the part of the graph on one side of the line is a reflection of the part on the other side. |
| complex conjugate | For all real numbers a and b, a + bi and a - bi are complex conjugates. |
| complex fraction | A fraction that has frac- tions in either the numerator or the denominator or both. |
| complex number | A number of the form a + bi, where a and b are real numbers and i is the imaginary unit. |
| conjugate | Two binomials of the form (a + Nt/b) and (a - N/b). where a and b are rational numbers. |
| degree of a polynomial | The degree of the term (or terms) of highest degree. |
| field | A set of numbers with two operations that has the closure, commutative, associative, identity, and inverse properties for addition and multiplication and distributive for multiplication over addition. |
| linear equation in two variables | An equation of the form y = mx + b. |
| linear function | A function is a linear function if and only if its domain is the set of all real numbers and its equation can be written in the form y = mx + b. |
| linear polynomial | A polynomial of degree 1. |
| linear term of a quadratic equation | The term bx in an equation of the form y = ax^2+ bx + c. |
| maximum value | The Y-coordinate of the vertex of the graph of a quadratic function that opens downward. |
| real numbers | The set of all rational and irrational numbers. |
| reciprocals | Pairs of real numbers that have the product 1. Also known as mulliplicarive inverses. |
| substitution | A method of solving systems of equations by replacing one variable with another variable or variable expression that is equal to it. |
| system | A set of equations having the same variables. |
| vertex of a parabola | The point on a parabola midway between the focus and the directrix. |
| x-axis | The horizontal axis. |
| y-axis: | The vertical axis. |
| y-intercept of a graph | The y-coordinate of the point at which a line crosses the Y-axis. |
