Algebra crossword

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Across
  1. 2. distance from zero
  2. 4. where graph crosses y axis
  3. 5. Ax+By=C
  4. 7. a vertical line
  5. 8. a line going up from left to right
  6. 9. y over x
Down
  1. 1. difference between consecutive terms
  2. 3. never crossing
  3. 6. formula: y-y1=m(x-x1)