Gracie's Puzzle

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Across
  1. 3. The top number of a fraction
  2. 4. Scaled by a scale factor less in absolute value than one
  3. 8. The bottom number of a fraction
  4. 10. seven 1/m^2+4m-1/m=4/m^2+4m
  5. 12. A point on the Y axis through which the slope of a line passes
  6. 13. Set of outputs in a function
  7. 15. two 1/n^2=1/n+3/n^2
  8. 17. Parallel to to the plane of the horizon
  9. 19. A number or letter that is multiplied by a variable of a single term or terms of a polynomial
Down
  1. 1. A number or expression that divides another number or expression evenly
  2. 2. A value/line that continually approaches a given line but doesn't ever meet it
  3. 5. The top is directly above the bottom, up and down
  4. 6. Set of inputs in a function
  5. 7. A figure either being enlarged or narrowed in one direction
  6. 9. Moving every point the same direction and distance
  7. 11. The common endpoint of the sides of an angle
  8. 14. A flip of a mirror image of points
  9. 16. 2/x-5=1-1/x-5
  10. 17. What is created when the numerator and denominator of a rational function have a common factor and cancel out?
  11. 18. 4/5m^2-27m-18+1/5m+3=1/5m^2-27m-18