Algebra Crossword Puzzle

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Across
  1. 3. what is this called
  2. 4. what is this called x
  3. 7. what type of lines are these
  4. 10. what type of lines are these
  5. 11. what type of plot is this
  6. 13. what type of property is shown by this x(x+1)=x^2+x
  7. 16. what is the name of this symbol O
  8. 17. zero slope has what type of line
  9. 18. an undefined slope has what type of line
  10. 19. what type of correlation is this
  11. 20. what is the name of this formula "y-y1=m(x-x1)
Down
  1. 1. what type of property is shown by this X a x X b =X ab
  2. 2. what is the name of this formula "y=mx+b"
  3. 5. what is the name of this formula "x=2a/b"
  4. 6. crosses over the x axis
  5. 8. what is the name of this symbol
  6. 9. what is it called when you subtract the lowest number from the highest number
  7. 10. what type of correlation is this
  8. 12. what type of property is shown by this X a x X b= X a+b
  9. 14. what is this called "2"a+bc
  10. 15. what is this called