math crossword puzzle

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Across
  1. 4. price
  2. 8. multiplying a number or sum of two or more numbers
  3. 9. blueprint
  4. 12. A line that moves downward from left to right on a graph
  5. 15. it involves two or more variables
Down
  1. 1. the line on a graph rises from left to right
  2. 2. over
  3. 3. point where a graph intercepts the y-axis
  4. 5. less then, greater then, and not equal to
  5. 6. a linear equation is expressed as y = mx + b
  6. 7. BRACKET, ASIDE, BREAK, INTERMISSION, COMMENT
  7. 10. they are operations that "undo" the effect of another operation
  8. 11. minus
  9. 13. can be found in crossword puzzles
  10. 14. refers to various puzzles such as wordle or crossword