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Math Vocab Chapter 5

QuestionAnswer
Complex Fraction a fraction that has at least one fraction in the numerator,denominator,or both
Constant of Proportionality the number k in the direct variation equation y=kx the constant of proportionality in the equation y= 2x is 2
Coordinate Plane a coordinate plane is formed by the intersection of a horizontal number line and a vertical number line
Cross Products in the proportion a.b=c.d, the products a.d and b.c are cross products
Cross Products Property property-the cross product of a proportion are equal
Direct Variation two quantities x and y show direct variation when y=kx,where k is a number and k = 0
Ordered Pair a pair of numbers (x and y) used to locate a point in a coordinate plane;the first number is the x-coordinate and the second coordinate is the y-coordinate
Origin a pair of numbers (x and y) used to locate a point in a coordinate plane;the first number is the x-coordinate and the second coordinate is the y-coordinate
Proportion a equation stating that two ratios are equivalent
Proportionality two quantities that form a proportion are proportional
Quadrants the four regions created by the intersection of the horizontal and vertical number lines in a coordinate plane
Rate a ratio of two quantities using different units
Ratio a comparison of two quantities using division;the ratio of a to b (where b = 0) can be written as a to b,a:b,a over b
Ratio table a table used to find and organize equivalent ratios
Slope the slope m of a line is a ratio of the change in y (the rise) to the change in the x (the run) in any two points (x1,y1) and (x2,y2) on a line. It is a measure of the steepness of a line
Unit Rate a rate with a denominator of 1
X-axis the horizontal number line in a coordinate plane
X-coordinate the first coordinate in a ordered pair,which indicates how many units to move to the left or right from the origin
Y-axis the vertical number line in a coordinate plane
Y-coordinate the second coordinate in a ordered pair,which indicates how many units to move up or down from the origin
Created by: redskins1
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