Across
- 7. - the process of using fact,properties,or rule to justify reasoning or reach valid conclusion
- 10. - the set of all x-coordinates from each pair
- 11. - the second number of an ordered pair
- 12. - find the numerical value of an expression
- 13. - form by the intersection of two number line
- 15. - the first number of an order pair
- 18. - a graph that show the relationship between two set of data
- 19. - a pair of number used to locate any point on a coordinate plane
- 20. - an expression that contain sums and / or product variable and number
- 22. - the point at which the number line intersect in a coordinate system
- 23. - the horizontal number line which help to form the coordinate system
- 24. - statement of equality of two or more ratios
- 25. - another name for the coordinate system
Down
- 1. - to write an expression in a situation to see possible outcome
- 2. - the set of all y-coordinate from each ordered pair
- 3. - mathematical sentence that contain an equal sign
- 4. - an equation that contain a variable
- 5. - an educated guess
- 6. - an example that show a conjecture is not true
- 8. - a combination of number and operation
- 9. - reasoning based on a pattern of example or past event
- 11. - the vertical number line which help to form the coordinate system
- 14. - value for the variable that make an equation true
- 16. - a placeholder for any value
- 17. - set of order pair
- 21. - dot at the point that correspond to an order pair on a coordinate plane