Math Problem Statement

Describe the transformation of g to form a new graph, h, with the equation β„Ž(π‘₯) = βˆ’sinπ‘₯ + 1.

Solution

Based on the equation provided for g(x)=sin⁑(xβˆ’45∘)g(x) = \sin(x - 45^\circ) and the new equation h(x)=βˆ’sin⁑(x)+1h(x) = -\sin(x) + 1, the transformation from g(x)g(x) to h(x)h(x) involves the following steps:

1. Horizontal Shift:

  • g(x)=sin⁑(xβˆ’45∘)g(x) = \sin(x - 45^\circ) represents a sine function shifted 45 degrees to the right.
  • The equation h(x)=βˆ’sin⁑(x)+1h(x) = -\sin(x) + 1 has no horizontal shift, so the function shifts back 45 degrees to the left to align with sin⁑(x)\sin(x).

2. Reflection:

  • The negative sign in h(x)=βˆ’sin⁑(x)+1h(x) = -\sin(x) + 1 indicates a reflection across the x-axis. This inverts the sine wave.

3. Vertical Shift:

  • The +1+1 in h(x)=βˆ’sin⁑(x)+1h(x) = -\sin(x) + 1 results in a vertical shift upward by 1 unit.

Summary of Transformations:

To transform g(x)=sin⁑(xβˆ’45∘)g(x) = \sin(x - 45^\circ) into h(x)=βˆ’sin⁑(x)+1h(x) = -\sin(x) + 1:

  1. Shift 45 degrees to the left (to remove the βˆ’45∘-45^\circ shift).
  2. Reflect the function across the x-axis.
  3. Shift 1 unit upwards.

These transformations result in the new function h(x)h(x).

Would you like more details or have any questions? Here are some related questions to consider:

  1. What are the new x-intercepts and y-intercepts of h(x)h(x)?
  2. How does the maximum and minimum value of g(x)g(x) compare to h(x)h(x)?
  3. How would the period of the function change if the frequency of g(x)g(x) were different?
  4. What effect does each transformation have on the phase shift of the sine wave?
  5. How would the graph look if h(x)=βˆ’sin⁑(x)βˆ’1h(x) = -\sin(x) - 1 instead?

Tip: Always apply horizontal shifts before reflections and vertical shifts when transforming trigonometric functions.

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Transformations of Functions

Formulas

Sine function

Theorems

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Suitable Grade Level

High School