Question

Without​ graphing, determine whether the function represents exponential growth or exponential decay. Then find the​ y-intercept.
​f(x)equals3 left parenthesis 4 right parenthesis Superscript x
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Part 1
Choose the correct answer below.
The function represents exponential decay.
The function represents exponential growth.
Part 2
The​ y-intercept is
  
enter your response here. ​(Type an integer or a​ decimal.)

Answer 1

Part 1: The function represents exponential growth. (Base 4 > 1.)

Part 2: The y-intercept is f(0) = 3·4^0 = 3.