Which graph represents the function fx=2*4^x[tex][/tex]

f(x) = 2× 4^x

first Consider y = 4^x

It is exponential function with slope 1 at x= 0

Obviously it is increasing function

Let's find value at x=0

f(x) = 2× 4^0

= 2

At x= 1

f(x) = 2× 4 = 8

So, 2nd graph represent the function

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Step-by-step explanation:

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