LINEAR EQUATIONS IN TWO VARIABLES

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Across
  1. 5. a region defined by the x and y axes
  2. 10. the x axis
  3. 11. horizontal and vertical addresses in a graph
  4. 13. a value that never changes in an expression
  5. 14. the y axis
  6. 15. third algebraic method
  7. 16. equations having___ solutions are coincident
  8. 17. equations having ___ solution are incident
  9. 19. eliminating one variable to solve the other
  10. 20. Pair of linear equation can be represented by____
Down
  1. 1. equations which are parallel
  2. 2. when an equation has infinite solutions
  3. 3. when an equation has only one solution
  4. 4. equations which are intersecting and/or coincident
  5. 6. lines on the graph
  6. 7. every point on the graph (straight line) represents a __ of the linear equation.
  7. 8. when an equation has no solutions
  8. 9. a symbol which has an unknown numerical value
  9. 12. substituting one variable in terms of another
  10. 18. equations having __ solutions are parallel