Math Problem Statement

Diketahui fungsi f(x) = 2^(x-1) + 5. Jika fungsi f(x) ditranslasikan oleh T(4, -1), tentukanlah hasil translasi nya.

Solution

The image provided contains the following mathematical problem in Indonesian:

"Diketahui fungsi f(x)=2x1+5f(x) = 2^{x-1} + 5. Jika fungsi f(x)f(x) ditranslasikan oleh T(41)T \left( \begin{array}{c} 4 \\ -1 \end{array} \right), tentukanlah hasil translasi nya."

Translation of the question:

"Given the function f(x)=2x1+5f(x) = 2^{x-1} + 5. If the function f(x)f(x) is translated by the transformation T(41)T \left( \begin{array}{c} 4 \\ -1 \end{array} \right), determine the result of the translation."

Solution:

The translation described here is a horizontal and vertical shift. The transformation vector T(41)T \left( \begin{array}{c} 4 \\ -1 \end{array} \right) indicates:

  • A horizontal shift of 4 units to the right.
  • A vertical shift of -1 unit downwards.

Step 1: Horizontal Shift

The horizontal translation of 4 units to the right affects the xx-values. To reflect this, replace xx with x4x - 4 in the function.

Thus, the new function after horizontal translation is: f(x4)=2(x4)1+5=2x5+5f(x - 4) = 2^{(x-4) - 1} + 5 = 2^{x - 5} + 5

Step 2: Vertical Shift

The vertical translation of -1 unit affects the yy-values. To reflect this, subtract 1 from the entire function.

Thus, the new function after both translations is: ftranslated(x)=2x5+51=2x5+4f_{\text{translated}}(x) = 2^{x-5} + 5 - 1 = 2^{x-5} + 4

Final Answer:

The translated function is ftranslated(x)=2x5+4f_{\text{translated}}(x) = 2^{x-5} + 4.


Would you like further details or explanations?

Here are 5 related questions to consider:

  1. What is the general formula for translating a function?
  2. How do horizontal and vertical shifts affect the graph of exponential functions?
  3. How would the graph of f(x)=2x1+5f(x) = 2^{x-1} + 5 look before and after translation?
  4. What is the effect of shifting a function by a transformation vector T(ab)T \left( \begin{array}{c} a \\ b \end{array} \right)?
  5. How can you apply transformations to other types of functions, such as quadratic or trigonometric functions?

Tip: When applying a horizontal shift, remember that replacing xx with xax - a shifts the graph right by aa units, and replacing xx with x+ax + a shifts it left by aa units.

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Math Problem Analysis

Mathematical Concepts

Function Translation
Exponential Functions

Formulas

Translation Formula: f(x-a) for horizontal shifts
f(x) + b for vertical shifts

Theorems

Translation of functions

Suitable Grade Level

Grades 10-12