Chapter 1 crossword

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Across
  1. 2. A dot at the point that corresponds to an ordered pair on a coordinate plane
  2. 4. the first number of an ordered pair
  3. 9. An educated guess
  4. 11. A value for the variable that makes an equation true
  5. 12. An expression that contains sums and/or products of variables and numbers
  6. 15. To write an expression in a simpler form
  7. 16. The vertical number line which helps to form the coordinate system
  8. 17. An example that shows a conjecture is not true
  9. 18. A graph that shows the relationship between two set of data
  10. 21. A placeholder for any value
Down
  1. 1. Is a formed by the intersection of two number lines that meet at the right angles at the zero points, also called coordinate plane
  2. 3. Statements that are true for any numbers
  3. 5. The second number of an ordered pair
  4. 6. Relation of pair of X-coordinates
  5. 7. A set of order pair
  6. 8. The horizontal number line which helps to form the coordinate system
  7. 10. A mathematical sentences that contains an equation sign
  8. 13. Another name for the coordinate system
  9. 14. Find the numerical value of an expression
  10. 19. Relation of pair of Y-coordinates
  11. 20. The point at which the number lines intersect in a coordinate system