Respuesta :

altavistard

Answer:

Step-by-step explanation:

A:  y = 3x is a linear function;

B:  y = 2x - 4 is also a linear function;

C:  y = x^3 (not x3) is a power function;

D:  y = 3 + 5x is a linear function

An exponential function looks like y = a(b)^c; none of these possible answers fit!  Ensure that you have copied this problem down completely and correctly.

profantoniofonte

Answer:

[tex]y=x^{3}[/tex]

Step-by-step explanation:

1)An exponential function is every function with the variable on the exponent. And it is written in this form.

[tex]y=ax^{n} \: \Rightarrow \left\{\begin{matrix}0<a<1\\a>1\end{matrix}\right.[/tex]

2)In the alternatives, the only function with the variable as an exponent is

[tex]y=x^{3}[/tex] with a=1. Check the graph below.

Ver imagen profantoniofonte

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