Ratios and Proportions Vocabulary

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Across
  1. 3. a set of numbers used to locate a position on a coordinate plane; (x,y)
  2. 5. the amount of money taken off the original price.
  3. 6. the horizontal number line on a coordinate plane (crawl)
  4. 7. the constant rate of change in a proportional relationship, also known as the unit rate. It is represented by the variable k, the ratio between y and x as k=yx.
  5. 8. the amount of money added to items to set the selling price and create profit
  6. 15. shows input (x) and output (y) values that change by a constant unit rate.
  7. 17. the amount of money added to the price and is owed to the government.
  8. 18. an equation that shows two ratios as being equivalent.
  9. 19. a ratio that has a number related to 1. Often written using “per”
  10. 20. a grid formed by two numbers lines known as the x and y axis.
  11. 24. a relationship between two quantities that change at a constant rate over time; can be represented by a graph, table, equation, and verbal description.
  12. 25. a fraction in which the numerator and/or denominator are also fractions.
Down
  1. 1. relates two variables with a constant rate of change. For example, y=3x shows that the value of y is proportional to the value of x, and 3 is the unit rate.
  2. 2. the amount of money added to a bill in exchange for services.
  3. 4. when you multiply the numerator and denominator from opposite sides of a proportion to create an equation. Cross products are equal in a true proportion.
  4. 9. the rate of change between two proportional objects/drawings
  5. 10. shows a straight line that extends through the origin, (0, 0).
  6. 11. the starting point on a coordinate plane; where the x & y axis meet at (0,0)
  7. 12. the cost for 1 unit of something. Example: $3 per gallon
  8. 13. a drawing that is proportionally smaller or larger than the actual object
  9. 14. the amount of money earned from sales. It is a type of income.
  10. 16. a comparison between two quantities. We will write them as a fraction this year.
  11. 21. the vertical number line on a coordinate plane (walk)
  12. 22. a part-to-whole ratio that has a number related to 100. It can be written as a fraction with a denominator of 100, with a % sign, or as a decimal to the hundredths place.
  13. 23. the amount owed after discounts are subtracted.