Algebra 1 Crossword Puzzle

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Across
  1. 4. Two lines that meet at a 90* angle are?
  2. 5. If there are no common coefficients when trying to eliminate, _________________ one or both equations by some number to cancel out a variable.
  3. 6. A horizontal line on a graph has a slope of?
  4. 9. A vertical line on a graph has a slope of?
  5. 10. Rise over run?
  6. 14. When combining like terms do you change the variables or exponents?
  7. 15. Coefficient is the number in _________ of the monomial.
  8. 17. To combine like terms, only combine the _____________________.
  9. 19. What is the order of operations?
  10. 20. One single term
Down
  1. 1. The answer to a set of parallel lines would be __ _______________
  2. 2. Solving a system of equations by drawing the two lines on a ______________?
  3. 3. Solving a system of equations by cancelling one of the variables?
  4. 5. than What does > mean?
  5. 7. Where the line crosses the y-axis?
  6. 8. When multiplying two numbers with the same base, __________ the exponents
  7. 10. Solving a system of equations by substituting an expression into another equation?
  8. 11. y = mx + b --> what is this called?
  9. 12. What has an equal sign?
  10. 13. There are three types of answers you can receive when solving a system of equation: one solution, no solution, or _______________.
  11. 16. What does < mean?
  12. 18. What has a symbol such as <, >?