The graph of f(x) = (1/4)^-x is reflected about the y-axis and compressed vertically by a factor of 1/3 What is the equation of the new function, g(x)?

Respuesta :

Given:

[tex]f(x)=(\frac{1}{4})^{-x}[/tex]

f(x) is reflected about the y-axis and compressed vertically by a factor of 1/3.

Required:

We need to find the new function g(x).

Explanation:

The reflection of the function y=f(x) about y-axis is y=f(-x).

To reflect the given function f(x) about y-axis:

Replace x =-x in the given function f(x).

[tex]f(-x)=(\frac{1}{4})^{-(-x)}[/tex]

[tex]f(-x)=(\frac{1}{4})^x[/tex]

Multiply both sides by 1/3 to get the function compressed vertically by a factor of 1/3.

[tex]\frac{1}{3}f(-x)=\frac{1}{3}(\frac{1}{4})^x[/tex]

The new function is

[tex]g(x)=\frac{1}{3}(\frac{1}{4})^x[/tex]

Final answer:

[tex]g(x)=\frac{1}{3}\times(\frac{1}{4})^x[/tex]