Chapter 2 Vocabulary
by Te'vion Forrest
1. Vertex form
1.1. The vertex form of a quadratic function is given by. f (x) = a(x - h)2 + k, where (h, k) is the vertex of the parabola.
2. Zero of a function
2.1. The x-value that makes the function equal to 0
3. Root of an equation
3.1. That value which, substituted for the unknown quantity in an equation, satisfies the equation.
4. Standard Form
4.1. f(x) = a(x - h)2 + k
5. Trinomial
5.1. A quadratic expression with three terms
6. Translations
6.1. This means we are moving the graph horizontally to the left or right or vertically up or down. It also can stretch and compress
7. Maximum Value
7.1. The largest value of the function
8. Completeing the Square
8.1. a method used to solve a quadratic equation by changing the form of the equation so that the left side is a perfect square trinomial . To solve a x 2 + b x + c = 0 by completing the square
9. Radical Fuction
9.1. a radical expression with the independent variable (usually x) in the radicand. Usually radical equations where the radical is a square root is called square root functions. An example of a radical function would be. y = x.
10. Quadratic Function
10.1. One of the form f(x) = ax2 + bx + c, where a, b, and c are numbers with a not equal to zero
11. Parabola
11.1. A symmetrical open plane curve formed by the intersection of a cone with a plane parallel to its side. Image result for parabola
12. Vertex of a parabola
12.1. where the parabola changes direction
13. Minimum Value
13.1. The place where the graph has a vertex at its lowest point
14. Square Root Property
14.1. Taking the square roots of both sides of the equation. Before taking the square root of each side, you must isolate the term that contains the squared variable
15. Imaginary Unit
15.1. A solution to the quadratic equation x2 + 1 = 0
16. X intercept
16.1. A point at which some function crosses the x-axis, which is the horizontal axis.
17. Y intercept
17.1. A point at which some function crosses the y-axis, which is the vertical axis.
