Across
- 1. A reference line on a coordinate plane
- 5. The y-coordinate of a point
- 7. To find the value of an unknown variable in an equation
- 9. A statement that two expressions are equal
- 11. A type of line that is always parallel
- 13. Involving only first-degree terms
- 15. A relationship between inputs and outputs
- 16. A mathematical expression
- 17. The number of axes in a coordinate plane
- 18. A straight path extending infinitely in both directions
- 19. The steepness of a line
- 20. A value that does not change
Down
- 2. A set of equations
- 3. A visual representation of a mathematical relationship
- 4. A point where a line crosses an axis
- 6. A location on a graph
- 8. A symbol representing a number
- 10. A numerical factor in an equation
- 12. The x-coordinate of a point
- 14. An answer to an equation