Module 4 extra credit

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Across
  1. 1. the acronym for order of operations
  2. 6. when two terms have the same variables they are
  3. 7. the word for the unknown amount in an equation
  4. 9. the bottom of a fraction
  5. 11. {x:x<7} is an example of this type of notation
  6. 12. the inverse of subtraction
  7. 13. the number line is shaded on this side of 10 when x<10
  8. 14. the number in front of a variable
  9. 17. the inequality sign > means this
  10. 18. the circle at 5 on the number line when x>5
  11. 19. switching the top & bottom of a fraction
Down
  1. 2. the inverse of multiplication
  2. 3. another way to say "less than or equal to"
  3. 4. what to use to check a solution to an inequality
  4. 5. flip the inequality sign when multiplying by a
  5. 8. the inequality sign < means this
  6. 9. property used to simplify 3(m+7)
  7. 10. the top of a fraction
  8. 15. (-6, infinity) is an example of this notation
  9. 16. the circle on a number line at -4 when x≤-4