Math Vocab (and Review) Dec.2012
| __ | 1. | algebra | | A. | an equation that maintains equality on both sides | | __ | 2. | balanced equation | | B. | math that uses variables to represent unknown values | | __ | 3. | expression | | C. | a ʺnumber sentenceʺ that shows a change in value | | __ | 4. | integer | | D. | whole numbers and their opposites | | __ | 5. | percent | | E. | a ratio that compares a number to 100 | | __ | 6. | proportion | | F. | a statement of equality of two or more ratios | | __ | 7. | rate | | G. | a ratio that compares two different units | | __ | 8. | ratio | | H. | a letter (or symbol) used to represent an unknown amount | | __ | 9. | unit rate | | I. | a comparison of two different units with a denominator of 1 | | __ | 10. | variable | | J. | a comparison of numbers by division |
| __ | 11. | axes | | A. | A real number that cannot be written as a fraction | | __ | 12. | coordinate plane | | B. | A real number that can be written as a ratio of two integers | | __ | 13. | irrational/non-rational number | | C. | The horizontal (flat) line on a coordinate plane | | __ | 14. | negative slope | | D. | the graph of a line/equation that slants down left to right | | __ | 15. | origin | | E. | The vertical (standing upright) line on a coordinate plane | | __ | 16. | positive slope | | F. | a plane with a horizontal (x) and vertical (y) number | | __ | 17. | quadrant | | G. | the graph of a line that slopes up from left to right | | __ | 18. | rational number | | H. | one of the four regions formed on a coordinate plane | | __ | 19. | x-axis | | I. | the intersection of the x and y axes; (0,0) on a graph | | __ | 20. | y-axis | | J. | plural of axis |
| __ | 21. | interquartile range | | A. | the number or item that appears most often in a set of data | | __ | 22. | lower quartile | | B. | average found by adding the data and dividing by how many | | __ | 23. | mean | | C. | y=mx + b (m is the slope and b is the y-intercept) | | __ | 24. | median | | D. | the middle number in a set of data | | __ | 25. | mode | | E. | the median of the lower half of a set of numbers listed in o | | __ | 26. | slope | | F. | the median of the upper half of a set of numbers | | __ | 27. | slope-intercept | | G. | the range of the middle half of data | | __ | 28. | square root | | H. | the point on a line that intercepts the y-axis | | __ | 29. | upper quartile | | I. | finding which number multiplied by itself equals the number | | __ | 30. | y-intercept | | J. | ratio of the rise over the run of a line |
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