Which of the following options is an equivalent function to f(x) = 4(3)2x?

A.f(x)= 36x

B.f(x)= 4(9)x

C.f(x)= 144x

D.f(x)= 4(6x)

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asked by May

Nov 4, 2015

if you are doing exponents please write superscripts with an arrow up

4^3 = 4*4*4 = 64

2^(2*3) = 2^6

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posted by Damon

Nov 4, 2015

It is exponents

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posted by April

Nov 4, 2015

But what is the exponent ?

Please use standard notation.

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posted by Damon

Nov 4, 2015

Which of the following options is an equivalent function to f(x) = 4(3^2x?

A.f(x)= 36^x

B.f(x)= 4(9)^x

C.f(x)= 144^x

D.f(x)= 4(6x)

I think that’s how you put the exponents in standard notation

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posted by April

Nov 4, 2015

The answer is b

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posted by April

Nov 4, 2015

3^(2x) = (3^2)^x = 9^x

so

4 * 3^(2x) = 4 * 9^x

agree B but watch notation carefully 🙂

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posted by Damon

Nov 4, 2015