Algebra crossword :)

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Across
  1. 3. A segment whose end points are the center of a circle, and the point of a circle
  2. 9. Intersecting to a 90 degree angle
  3. 10. The ratio between two corresponding measurements
  4. 14. An angle that goes over or past 90 degrees
  5. 16. Something (usually a letter) to substitute the place of a term in an expression
  6. 17. All of the out put values in the relation of a function which can be repeated
  7. 18. Average of a data set
  8. 19. A set of ordered pairs
  9. 20. A comparison of two quantities by division
Down
  1. 1. area The total area of all faces and curved surfaces of a 3-dimensional figure
  2. 2. A measure o the steepness of a line
  3. 4. A number multiplied by a variable
  4. 5. Value or values that occur most frequently in a data set
  5. 6. A number from 0% to 100% that is the measure of how likely an event to occur
  6. 7. A pattern or sequence in data of numbers and can be graphed coordinate plane
  7. 8. An angle that is anywhere from 0 to 89 degrees
  8. 11. segment A line in which has two ends, and stops at two individual points
  9. 12. All of the input values in the relation of a function
  10. 13. An area located on the coordinate plane, where something can be graphed (there are 4 of them)
  11. 15. To perform all indicated operations