Gracie's Puzzle

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Across
  1. 2. The top number of a fraction
  2. 4. A number or expression that divides another number or expression evenly
  3. 7. negative seven
  4. 8. The common endpoint of the sides of an angle
  5. 11. A figure either being enlarged or narrowed in one direction
  6. 15. A number or letter that is multiplied by a variable of a single term or terms of a polynomial
  7. 18. The bottom number of a fraction
  8. 19. eight
  9. 20. Parallel to to the plane of the horizon
Down
  1. 1. three
  2. 3. Moving every point the same direction and distance
  3. 5. A value/line that continually approaches a given line but doesn't ever meet it
  4. 6. Scaled by a scale factor less in absolute value than one
  5. 9. A point on the Y axis through which the slope of a line passes
  6. 10. The top is directly above the bottom, up and down
  7. 12. A flip of a mirror image of points
  8. 13. What is created when the numerator and denominator of a rational function have a common factor and cancel out?
  9. 14. negative two
  10. 16. Set of outputs in a function
  11. 17. Set of inputs in a function