Chapter 2 Vocabulary

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Across
  1. 5. adding the same number to each side of an equation produces an equivalent equation
  2. 6. the ratio of the amount of change to the original amount expressed as a percent
  3. 7. the percent change found when the original amount increases
  4. 11. a ratio is the comparison of two quantities by division
  5. 15. multiplying each side of an equation by the same nonzero number produces an equivalent equation
  6. 20. a ratio of a to b where a and b represent quantities measured in different units
  7. 21. the ratio of the absolute value of the difference of a measured (or estimated) value and an actual value compared to the actual value
  8. 24. the ratio of the absolute value of the difference of the measured (or estimated) value and an actual value compared to the actual value, expressed as a percent
  9. 25. an enlarged or reduced drawing similar to an actual object or place
  10. 26. including units for each quantity in a calculation to determine the unit of the answer
  11. 27. using properties of equality and inverse operations to get a variable with a coefficient of 1 alone on one side of the equation
Down
  1. 1. a three-dimensional model that is similar to a three-dimensional object
  2. 2. a rate with a denominator of 1
  3. 3. operations that undo one another
  4. 4. subtracting the same number from each side of an equation produces an equivalent equation
  5. 8. the cross products of a proportion are equal
  6. 9. an equation involving two or more variables
  7. 10. similar figures are two figures that have the same shape, but not necessarily the same size
  8. 12. dividing each side of an equation by the same nonzero number produces an equivalent equation
  9. 13. an equation that states a relationship among qualities
  10. 14. In a proportion a/b = c/d, the products ad and bc. These products are equal.
  11. 16. a ratio of two equivalent measures in different units
  12. 17. the percent change found when the original amount decreases
  13. 18. equations that have the same solution
  14. 19. The ratio of any length in a scale drawing to the corresponding actual length. The lengths may be in different units.
  15. 22. an equation that is true for every value
  16. 23. an equation that states that two ratios are equal