Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
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A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
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Can you show me step by step how to solve the problem and sketch the graph

Transcribed Image Text:### Problem Description:
3. Sketch the graph of \( f(x) = 2 \sin(x) + 3 \)
### Explanation:
In this problem, we are asked to sketch the graph of the function \( f(x) = 2 \sin(x) + 3 \). Here's how to approach graphing this function:
1. **Identify the base function**: The base function here is \( \sin(x) \), which is a standard sine function.
2. **Amplitude Adjustment**: The coefficient 2 in front of \( \sin(x) \) affects the amplitude of the sine wave. Instead of oscillating between -1 and 1, the sine wave will now oscillate between -2 and 2.
3. **Vertical Shift**: The addition of 3 shifts the entire graph vertically upward by 3 units. Hence, instead of oscillating around the x-axis, the graph will now oscillate around the line \( y = 3 \).
4. **Period and Frequency**: Since there is no coefficient affecting the \( x \) inside the sine function, the period and frequency remain unchanged. The standard period of \( \sin(x) \) is \( 2\pi \).
### Graph Description:
To graph \( f(x) = 2 \sin(x) + 3 \):
- Start with the basic shape of \( \sin(x) \), which oscillates between -1 and 1.
- Scale the amplitude so that the wave oscillates between -2 and 2.
- Shift the entire graph up by 3 units so the centerline of the wave is at \( y = 3 \).
- Mark key points such as the maximum (5), minimum (1), and intercept at each half-period (when \( \sin(x) \) is 0, \( f(x) = 3 \)).
The resulting graph will be a sine wave oscillating between 1 and 5 with a central axis at \( y = 3 \).
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