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jek_recluse [69]
2 years ago
10

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 b

etween function f and function g

Mathematics
2 answers:
Dmitriy789 [7]2 years ago
7 0

The function rule for function g is g(x) = 3³ˣ ⁻ ² + 4

The types of transformations that occur between function f and function g are horizontal scaling by a scale factor of ¹/₃ and followed by vertical translation by 4 units upwards from graph f(x)

\texttt{ }

<h3>Further explanation</h3>

Function is a relation which each member of the domain is mapped onto exactly one member of the codomain.

There are many types of functions in mathematics such as :

  • <em>Linear Function → f(x) = ax + b</em>
  • <em>Quadratic Function → f(x) = ax² + bx + c</em>
  • <em>Trigonometric Function → f(x) = sin x or f(x) = cos x or f(x) = tan x</em>
  • <em>Logarithmic function → f(x) = ln x</em>
  • <em>Polynomial function → f(x) = axⁿ + bxⁿ⁻¹ + ...</em>

\texttt{ }

If function f : x → y , then inverse function f⁻¹ : y → x

Let us now tackle the problem!

\texttt{ }

<u>Given:</u>

f(x) = 3^{x - 2}

g(x) = f(3x) + 4

<u>Asked:</u>

g(x) = ?

<u>Solution:</u>

If f(x) = 3^{x - 2} , then:

h(x) = f(3x) → Horizontal Scaling by a scale factor of ¹/₃ (Scaling in the x - direction) from graph f(x)

h(x) = 3^{3x - 2}

\texttt{ }

g(x) = h(x) + 4 → Vertical Translation by 4 units upwards (Translation in the y-direction) from graph h(x)

g(x) = 3^{3x - 2} + 4

\texttt{ }

<h3>Conclusion:</h3>

The function rule for function g is \boxed{ g(x) = 3^{3x - 2} + 4 }

The types of transformations that occur between function f and function g are horizontal scaling by a scale factor of ¹/₃ and followed by vertical translation by 4 units upwards from graph f(x)

\texttt{ }

<h3>Learn more</h3>
  • Inverse of Function : brainly.com/question/9289171
  • Rate of Change : brainly.com/question/11919986
  • Graph of Function : brainly.com/question/7829758

<h3>Answer details</h3>

Grade: High School

Subject: Mathematics

Chapter: Function

Keywords: Function , Trigonometric , Linear , Quadratic, Transformations

#LearnWithBrainly

galben [10]2 years ago
7 0

Answer:

g(x) = 3^(3x-2)+ 4

transformations: horizontal compression and vertical translation

Step-by-step explanation:

Given

f(x)=3^(x-2)

To get f(3x) replace x by 3x:

f(3x) = 3^[(3x)-2] = 3^(3x-2)  

Add 4 to that result and get g(x):

g(x)=f(3x)+4 = 3^(3x-2)+ 4

g(x) has two parts, 'f(3x)' and '+ 4'

f(3x) -> horizontal compression by a factor of 3

+ 4 -> vertical translation up 4 units

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