PA Chapter 1

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Across
  1. 1. a set of ordered pairs
  2. 4. the horizontal number line in a coordinate plane
  3. 6. of Numbers statements that are true for any numbers
  4. 8. expression An expression that contains only numbers and operations
  5. 9. of operations the order in which operations in an expression to be evaluated are carried out
  6. 10. a branch of mathematics dealing with symbols
  7. 11. A mathematical sentence that contains an equals sign.
  8. 12. A symbol used to represent a quantity
  9. 16. pair A pair of numbers that can be used to locate a point on a coordinate plane
  10. 18. a dot at the point that represents an ordered pair on the coordinate plane
  11. 19. Property The way in which numbers are grouped does not change their sum or product.
  12. 20. plane a plane in which a horizontal number line and a vertical number line intersect at their zero points
  13. 22. to find the numerical value of an expression
Down
  1. 2. A fixed point at which number lines intersect in the coordinate system.
  2. 3. the first number in an ordered pair
  3. 5. the second number in an ordered pair
  4. 7. the set of all x-coordinates from each ordered pair in a relation
  5. 13. expression An expression that contains numbers, operations, and one or more symbols.
  6. 14. to write an expression in a simpler form
  7. 15. Property The order in which numbers are added or multiplied does not change the sum or product.
  8. 17. The set of all y-coordinates from each ordered pair in a relation.
  9. 21. the vertical number line in a coordinate plane