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anonymous
 one year ago
please help if f(x)=(1/3)^x and a<b, which of the following must be true?
anonymous
 one year ago
please help if f(x)=(1/3)^x and a<b, which of the following must be true?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0..are there any answer choices?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes @jacquelyn1237 A.f(a)+ f(b)=3 B f(a) + 1/3=f(b) C f(a)= f(b) D. f (a) < f(b) E. f (a) >f(b)

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0first step is to narrow it down to D and E, since those are the only ones that make remote sense

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0an easy way to distinguish whether f(a) or f(b) is bigger is just to pick two numbers for a and b and see which one ends up bigger

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0if we let a = 1 and b = 2, see whether f(a) or f(b) is bigger.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0(you can rule out choices A and B because the questions asks which one "must" be true" and those only work for certain numbers)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@Vocaloid which would be the a or the c in this?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0just calculate f(a) when a = 1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0is the answer E, because its a whole fraccion?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and how you know a its 1 ?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0I just picked a value for a

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0the question just says a < b so I just picked a = 1 and b = 2 as test values

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0you can pick any two numbers for a and b as long as a < b

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0the point of me picking a = 1 and b = 2, was just to see whether f(a) or f(b) was bigger

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0b is the exponent right?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.0f(x) = (1/3)^x f(a) = (1/3)^a f(b) = (1/3)^b find f(a) and f(b) if a = 1 and b = 2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\left( \frac{ 1 }{ 3 } \right)^2=\frac{ 1 }{ 9 },\] \[\left( \frac{ 1 }{ 3 } \right)^3=\frac{ 1 }{ 27 }\] 2<3 \[\frac{ 1 }{ 9 } ?\frac{ 1 }{ 27 }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yeah its true @surjithayer 1/9 is bigger than 1/27
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