math crossword

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Across
  1. 2. (--)(++)(-+)(+-)
  2. 9. the answer to a problem
  3. 10. little arrows in a problem
  4. 11. Ax+By=C
  5. 12. how much something changes over time compared to another varible
  6. 14. rise over run is how you find what
  7. 15. y-y1=m(x-x1)
  8. 16. when the line intercepts the x-axis
  9. 18. what you have to solve
  10. 19. +-+x
  11. 20. when the line intercepts the y-axis
Down
  1. 1. an input has only 1 output
  2. 3. if one increases or decreases the other does the same
  3. 4. non-equal comparision
  4. 5. the collection of all values that satisfy a given equation, inequality, or system of equations
  5. 6. y=mx+b
  6. 7. how you solve an equation
  7. 8. horizontal lines
  8. 13. straight lines on a coordinate plane
  9. 17. vertical lines