Across
- 5. Side to side
- 7. lines that intersect at a 90 degree angle
- 11. A set of all possible input values
- 13. less then zero
- 14. the x values don’t repeat
- 15. Has an axis of symmetry and is a U shape
Down
- 1. Equal to
- 2. straight lines that do not intersect at any point
- 3. up and down
- 4. a symbol that stands for an unknown number
- 6. the slope of a vertical line
- 8. a number greater then zero
- 9. A set of all possible output values
- 10. a point where two lines meet
- 12. when two or more lines cross each other