Unit 3: Systems of Linear Equations

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Across
  1. 2. Cost – The starting amount. It does not change.
  2. 6. – A letter that stands for a number we do not know yet.
  3. 9. (to a System) – The point that makes both equations true.
  4. 16. – Two numbers (x, y) that tell where a point is on a graph.
  5. 17. / Intersect – The spot where two lines cross.
  6. 19. – Put a number in place of a letter.
  7. 20. of Equations – Two equations solved together.
Down
  1. 1. Cost – The cost that changes for each item.
  2. 3. – A math phrase with numbers and letters. It does not have an equals sign.
  3. 4. Lines – Lines that never cross and stay the same distance apart.
  4. 5. Label – Words that tell what the up-and-down line shows.
  5. 7. – How much one number changes compared to another number.
  6. 8. Equation – An equation that makes a straight line on a graph.
  7. 10. Solution – The lines cross at one point.
  8. 11. Pair – Two numbers in parentheses that show a point.
  9. 12. Label – Words that tell what the side-to-side line shows.
  10. 13. – Get the letter by itself.
  11. 14. – Solve by getting rid of one letter.
  12. 15. Solutions – The lines are the same line. All the points work.
  13. 18. Solution – The lines never cross.