WILL MARK BRAINLINEST, WORTH 25 POINTS Given f(x)=3^(x-2) and g(x)=f(3x)+4, write the function rule for function g and describe the types of transformations that occur between function f and function g.

Respuesta :

Answer:

Function rule is [tex]g(x)=f(x)\rightarrow f(3x)\rightarrow f(3x)+4[/tex].

The transformations are compression in the x direction by a factor of 3 and then vertically shifting up by 4 units.

Step-by-step explanation:

Given:

[tex]f(x)=3^{x-2}[/tex]

[tex]g(x)=f(3x)+4[/tex]

So, [tex]g(x)[/tex] is a transformed function of [tex]f(x)[/tex].

There are two transformations involved:

1. [tex]f(x)\rightarrow f(3x)[/tex]

The [tex]x[/tex] value of the function [tex]f(x)[/tex] is multiplied by 3. So, according to transformation rules, when the [tex]x[/tex] value of the function [tex]f(x)[/tex] is multiplied by a positive number greater than 1, then the function compresses in the x direction.

As 3 is multiplied to [tex]x[/tex], [tex]f(x)[/tex] will be compressed in the x direction by a factor of 3.

2. [tex]f(3x)\rightarrow f(3x) +4[/tex]

Now, 4 is added to the compressed function. As per transformation rules, when a positive number is added to a given function, the function has a vertical shift.

Here, the compressed function will shift vertically up by 4 units.