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7.1.1-1.10 Unit Test

Math 7

TermDefinition
ratio a comparison of two quantities using division 5/7, 5:7, 5 to 7
rate a ratio that compares two quantities measured in different units 20 miles in 2 hours
proportion an equation that states that two ratios are equal to each other 1/4 = 3/12
equivalent ratios ratios that have the same value 1/2 = 2/4
cross products the product of numbers on the diagonal when comparing two ratios are equal
scaling up creating an equivalent ratio by multiplying the top and bottom of a fraction by the same number
scaling down creating an equivalent ratio by dividing the top and bottom of a fraction by the same number
unit rate a rate that has a denominator of 1 20 miles per (1) hour
proportional when two quantities have a constant rate or COP
non-proportional when two quantities DO NOT have a constant rate or COP
constant of proportionality the constant ratio between two quantities, found by dividing y by x
origin ( 0 , 0 )
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