To find the decay factor, you need to know the formula y=ab^x where "a" is the initial amount and "b" the growth or decay factor. It is a growth factor if the number next to "a" is bigger than 1, b>1, and it is usually in (). For example y=12(1.3)^x notice that (1.3) is bigger than 1 so it is a growth factor. The decay factor is "b" the same as growth factor but only that b<1.For example y=12(0.95)^x, 0.95 is less than 1 so it is a decay factor. In other words, if the number in "b" is less than one it is decay factor, if bigger than one then it is a growth factor.
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Find out about factors and factor trees.
You do a factor rainbow to find a prime factorization. You compare prime factorizations to find a greatest common factor.
You find the scale factor on a triangle by dividing the short side by the long side.
You need at least two factor trees to find a GCF.
You find a factor pair take the number that you want to find the factor pair of and divide it by a number. If the answer come out evenly then that's your factor pair EX. Factor pairs of 150 1 and 150 2 and 75 3 and 50 5 and 30 6 and 25 10 and 15