WORD PUZZLE

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Across
  1. 3. A system with exactly one solution
  2. 5. Vertical axis in the Cartesian plane
  3. 6. A graph showing all solutions of an inequality
  4. 11. Equation of a straight line in the form y = mx + b
  5. 13. A triangle with all equal sides
  6. 17. Method of solving systems by substitution
  7. 19. The highest exponent of a polynomial
  8. 20. Lines that intersect at right angles
  9. 23. The point where two lines meet
  10. 26. A triangle with one right angle
  11. 28. Method of solving systems by elimination
  12. 30. A relation that is not a function
  13. 31. Horizontal axis in the Cartesian plane
  14. 33. A pair of numbers (x, y)
  15. 35. The point where the graph crosses the y-axis
  16. 37. The steepness of a line
  17. 38. Absolute value represents this
  18. 39. A polynomial with two terms
  19. 40. A quadratic equation written as (x − a)(x − b) = 0
Down
  1. 1. A relation where each input has exactly one output
  2. 2. A triangle with two equal sides
  3. 4. The sum of the interior angles of a triangle
  4. 7. The longest side of a right triangle
  5. 8. A polygon with four sides
  6. 9. A mathematical sentence with inequality symbols
  7. 10. Formula used to solve quadratic equations
  8. 12. A polynomial with one term
  9. 14. Factoring method used for ax² + bx + c
  10. 15. A triangle with no equal sides
  11. 16. Method of solving systems by graphing
  12. 18. A quadratic equation in standard form
  13. 21. The set of all possible x-values
  14. 22. The distance between two points on a plane
  15. 24. A solution of an equation
  16. 25. A polynomial with three terms
  17. 27. The value of b² − 4ac
  18. 29. A system with no solution
  19. 32. A solution common to all equations in a system
  20. 34. Lines that never intersect
  21. 36. The set of all possible y-values