Algebra Crossword Puzzle

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Across
  1. 3. an equation in which the highest power of the variable is always 1.
  2. 8. direct proportion is a relationship between two variables x and y
  3. 11. two lines that are parallel to each other
  4. 12. a measure of its steepness
  5. 13. an inequality which involves a linear function
  6. 14. consists of at least two linear inequalities in the same variables
  7. 15. from a set X to a set Y
  8. 18. A system of linear equations is consistent independent when it has exactly one solution
  9. 19. a statement that the values of two mathematical expressions are equal
  10. 20. two lines that are crossing each other
Down
  1. 1. If the two equations describe parallel lines, and thus lines that do not intersect
  2. 2. equations where the variable is within an absolute value operator
  3. 4. is an inequality that has an absolute value sign with a variable inside, modulus of a complex number
  4. 5. the area contained by the x and y axes
  5. 6. a line on which numbers are marked at intervals, used to illustrate simple numerical operations.
  6. 7. any value of a variable that makes the specified equation true.
  7. 9. y=mx+b
  8. 10. y-y1=m(x-x1)
  9. 12. Ax+By=C
  10. 16. where the line crosses the x axis
  11. 17. where the line crosses the y axis