Across
- 3. The shape of the graph of a quadratic function
- 5. A point at which a parabola intersects its axis of symmetry; it is the maximum or the minimum of a parabola
- 6. A set that is part of a larger set; the elements are all elements of a larger set
- 9. The overlap of two or more items or groups
- 11. For any real numbers a and b, and any positive integer n, if a^n = b, then a is an nth root of b.
- 15. A set of equations with the same variables
- 16. A line about which a figure is symmetric
- 17. A method of solving a system of equations in which one equation is solved for one variable in terms of the other
- 18. A set that contains all of the elements of two or more sets
- 19. The set of all possible elements for a situation
Down
- 1. When you add or subtract two equations to remove one of the variables
- 2. Two complex numbers of the form a + bi and a - bi, where b is not zero
- 4. Each object or number in a set
- 7. A process used to make a quadratic expression into a perfect square trinomial
- 8. A collection of objects or numbers, often shown using braces {} and usually named by a capital letter
- 10. The nonnegative root
- 12. Any number that can be written in the form a+bi, where a and b are real numbers and i is the imaginary unit
- 13. A set with no elements shown by the symbol { } or Ø
- 14. The set of all outcomes that are not the event; elements that are not in the given set, but are in the universal set