Math Problem Statement

المعادلة \( y = -\left(\frac{1}{3}\right)^{x+5} \) تمثل منحنى الدالة الرئيسية \( y = \left(\frac{1}{3}\right)^x \).

Solution

The question is in Arabic and translates to:

The equation y=(13)x+5y = -\left(\frac{1}{3}\right)^{x+5} represents the graph of the main function y=(13)xy = \left(\frac{1}{3}\right)^x.

The goal seems to be to understand the relationship between the given function y=(13)x+5y = -\left(\frac{1}{3}\right)^{x+5} and the base function y=(13)xy = \left(\frac{1}{3}\right)^x.

Solution

  1. Transformation Analysis:

    • Original Function: y=(13)xy = \left(\frac{1}{3}\right)^x.
    • Given Function: y=(13)x+5y = -\left(\frac{1}{3}\right)^{x+5}.
  2. Transformations Observed:

    • Horizontal Shift: The exponent x+5x+5 in the given function implies a left shift of 5 units. In general, y=(13)x+cy = \left(\frac{1}{3}\right)^{x+c} shifts the graph left if cc is positive and right if cc is negative.
    • Reflection: The negative sign in front of (13)x+5\left(\frac{1}{3}\right)^{x+5} indicates a reflection across the x-axis.
  3. Resulting Transformations:

    • The base function y=(13)xy = \left(\frac{1}{3}\right)^x is shifted 5 units to the left and then reflected across the x-axis to produce the given function y=(13)x+5y = -\left(\frac{1}{3}\right)^{x+5}.

Would you like more details on any of these steps or have any further questions?


Additional Questions to Explore:

  1. How does a horizontal shift affect the asymptote of the function?
  2. What impact does a reflection over the x-axis have on the range of the function?
  3. How would a vertical shift impact this function?
  4. How does changing the base (e.g., from 13\frac{1}{3} to a different fraction) affect the function's behavior?
  5. How would the graph change if we reflected it over the y-axis instead?

Tip: When analyzing exponential functions, identify transformations systematically by examining shifts, reflections, and changes to the base separately.

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Math Problem Analysis

Mathematical Concepts

Exponential Functions
Transformations of Functions

Formulas

y = a(b)^{x+c}
Reflection and Horizontal Shift

Theorems

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Suitable Grade Level

High School