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Algebra 1 Chapter 9
McDougal Littell
| Question | Answer |
|---|---|
| Square Root | I b sqaured=a then b is a square root of a. |
| Positive Square Root | One of two square roots of a positive number. |
| Negative Square Root | Any of the numbers less than zero. |
| Radicand | The number or expression inside a radical symbol. |
| Perfect Square | A number whose square roots are integers or quotients of integers. |
| Irrational Number | A number that cannot be written as the quotient of two integers. |
| Radical Expression | |
| Quadratic equation in standard form | |
| Leading coefficent | The coefficient of the first term in a polynomial written in |
| Simplest form of a radical expression | An expression that has no perfect square factors other than 1 in the radicand, no fractions in the radicand, and no radicals appearing in the denominator of a fraction. |
| Quadratic Function in Standard Form | A function written in the form y=ax2+bx+c |
| Parabola | The u-shaped graph of a quadratic function. |
| Vertex | The lowest point of a parabola that opens up or the highest point of a parabola that opens down. |
| Axis of symmetry | The line passing through the vertex that divides the parabola into two symmetric parts. |
| Roots | The solutions of ax2+bx+c=0 |
| Quadratic Formula | |
| Discriminant | The formula used to find the solutions of the quadratic equation. |
| Quadratic Innequalites | |
| Graph of a quadratic Inequality |
Created by:
dhmahlman
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