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Which function represents a reflection of f(x) = 5(0. 8)x across the x-axis? g(x) = 5(0. 8)–x g(x) = –5(0. 8)x g(x) = One-fifth(0. 8)x g(x) = 5(–0. 8)x.

Sagot :

The function which represents the reflection of provided function across the x-axis is,

[tex]g(x) = -5(0. 8)x[/tex]

What is reflection of function?

The reflection of a function is flipping the original function with respect to a reference line.

The following steps used to for reflecting a the function-

  • Select the function which has to be reflected.
  • Select a baseline or reference line over which the function has to be reflected.
  • Mark the corners of the function at the equidistant from the reference line as the original function has, but in the opposite direction.
  • The reflected function is now is facing the opposite direction.

The function given in the problem is,

[tex]f(x) = 5(0. 8)x[/tex]

The function has the positive sign. Therefore, this function is located in the first quadrant.Now this function is reflected across the x-axis. This will lead this function in the fourth quadrant, with negative sign.

Therefore, the function become,

[tex]g(x) = -5(0. 8)x[/tex]

Hence, the function which represents the reflection of provided function across the x-axis is,

[tex]g(x) = -5(0. 8)x[/tex]

Learn more about the reflection here;

https://brainly.com/question/1908648