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