Across
- 4. a function with a straight-line graph
- 6. the steepness of a line
- 9. a value that does not change
- 11. a pattern where the same number is added each time
- 13. a relation where each input has exactly one output
- 14. the distance a number is from 0 on a number line
- 15. a comparison of two quantities
Down
- 1. a line that goes downward from left to right
- 2. the point (0,0) on a coordinate plane
- 3. a letter representing an unknown number
- 5. when two lines cross
- 7. lines lines that never intersect
- 8. a U-shaped graph of a quadratic function
- 10. the result of addition
- 12. a polynomial with three terms