Algebra Crossword

3. An expression containing numbers and variables
6. The likelihood of an event happening.
9. The horizontal and vertical number lines used in a rectangular graph or coordinate grid system.
10. A number or expression that divides another number
11. a plane curve generated by a point moving so that its distance from a fixed point is equal to its distance from a fixed line
13. A mathematical sentence in which two expressions are connected by an equality symbol.
16. The perimeter of a circle
18. The shape made by two rays extending from a common end point, the vertex.
20. A whole number that has no more than two factors.

1. The way in which three or more numbers are grouped for addition or multiplication does not change their sum or product
2. A sentence that states one expression is greater than or equal to, less than, less than or equal to another expression
4. The length of the boundary around a figure.
5. or any real numbers a, b, and x, x(a + b) = ax + bx.
7. A number's distance from zero (0) on a number line.
8. A mathematical expression that contains variables and describes a pattern or relationship.
10. Any part of a whole
12. The relationship between two sets in which each element of one set has one assigned element in the other set.
14. An angle with a measure of less than 90 degrees.
15. The inside region of a two-dimensional figure measured in square units
17. A mathematical sentence
19. A network of evenly spaced, parallel horizontal and vertical lines.