Answer and Step-by-step explanation: Power Functions are of the form:
[tex]f(x)=ax^{b}[/tex]
where a is scaling factor, which means, it moves the values of [tex]x^{b}[/tex] up or down;
and b is exponent or power, which determines the rate of growth or decay of the function.
The difference between exponential and power functions, is that in power functions, a variable base is elevated to a fixed exponent.
For that reason, Equations:
A. [tex]f(x)=2^{4\sqrt{x} }[/tex]
B. [tex]f(x)=\frac{\pi}{x}[/tex]
C. [tex]f(x)=2.3^{x}[/tex]
D. [tex]f(x)=2^{3\sqrt{x} }[/tex]
are NOT power functions.
