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Unit 4 Vocab Math
| Term | Definition |
|---|---|
| Axis of Symmetry | a line that divides a plane figure or a graph into two congruent reflected halves |
| Completing the Square | a process used to form a perfect square trinomial.To complete the square of X squared + bx, add (b/2) squared. |
| Concavity | describing the shape of a function as convex (concave up) or concave (concave down) |
| Degree of a Monomial | the sum of the exponents of the variables in the monomial; in a polynomial, use the term with the highest degree |
| Difference of Two Squares | a polynomial of the form a2 - b2, which may be written as the product (a + b)(a - b) |
| Discriminant | the discriminant of the quadratic equation ax2 + bx + c = 0 is b2 - 4ac |
| Function | a relation in which every domain value (x) is paired with exactly one range value (y) |
| Horizontal Shift | a shift of the parabola left or right, with no change in the shape of the parabola |
| Leading Coefficient | the coefficient of the first term of a polynomial in standard form |
| Parabola | the shape of the graph of a quadratic function |
| Perfect Square Trinomial | a trinomial whose factored form is the square of a binomial |
| Quadratic | n equation of degree 2, meaning that the highest exponent of this function/equation/expression is 2 |
| Standard Form | ax2 + bx + c = 0, where a, b, and c are real numbers and a ≠ 0 |
| Vertex | the highest or lowest point on the parabola |
| Vertex Form | a quadratic function written in the form f (x) = a(x - h)2 + k, where a, h, and k are constants and (h, k) is the vertex |
| Vertical Shift | a shift of the parabola up or down, with no change in the shape of the parabola |
| Zeros | or the function f, any number x such that f(x) = 0 |
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