Algebra crossword puzzle

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Across
  1. 4. A Mirror image
  2. 7. A term used to compare two numbers
  3. 9. A solution that is possible
  4. 13. An ordered list of numbers
  5. 14. There are many types like a absolute value ____ and a quadratic _______
  6. 15. An arrange of rows and columns to form an array
  7. 17. Two expressions that are equal
  8. 18. The variable that stands alone
  9. 20. Square ___
  10. 21. To confirm
  11. 22. <,> both ___ two numbers
Down
  1. 1. A number divisible by 2
  2. 2. The little circle in angles
  3. 3. Two shapes that have the same angles
  4. 5. A function that rhymes with microscope
  5. 6. A number that is neither negative or positive
  6. 8. An Equation that is always true no matter what number you put in the variable
  7. 10. When an exponent must be raised to reach a given number
  8. 11. Straight line that touches a curve at a pointParabola A U shaped function
  9. 12. Our number counting system is__ 10
  10. 13. A magnitude
  11. 16. A collection
  12. 19. What the numbers are in Matrixes