Find all solutions of 62x-34y=16. with y20.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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**Problem Statement:**

Find all solutions of the equation \( 6.2x - 3.4y = 16 \) with \( x \geq 0 \), \( y \geq 0 \).

**Explanation:**

This is a linear equation in two variables, \( x \) and \( y \). The task is to find all pairs \((x, y)\) that satisfy this equation while keeping both variables non-negative.

**Solution Approach:**

1. **Identify the Equation:** 
   Start with the given equation: 
   \[ 
   6.2x - 3.4y = 16 
   \]

2. **Rewrite for \( y \):**
   Express \( y \) in terms of \( x \):
   \[
   3.4y = 6.2x - 16 
   \]
   \[
   y = \frac{6.2}{3.4}x - \frac{16}{3.4}
   \]

3. **Find Intercepts:**
   - **X-Intercept:** Set \( y = 0 \), solve for \( x \).
   - **Y-Intercept:** Set \( x = 0 \), solve for \( y \).

4. **Graph Representation:** 
   Though not shown here, graph the line by plotting the intercepts and identifying the region where both \( x \) and \( y \) are non-negative.

5. **Check for Integer Solutions:** 
   If necessary, find integer pairs by testing values of \( x \) that result in \( y \) being a non-negative integer, or vice versa.

This approach ensures that you identify all set conditions of \((x,y)\) such that both are non-negative and satisfy the equation.
Transcribed Image Text:**Problem Statement:** Find all solutions of the equation \( 6.2x - 3.4y = 16 \) with \( x \geq 0 \), \( y \geq 0 \). **Explanation:** This is a linear equation in two variables, \( x \) and \( y \). The task is to find all pairs \((x, y)\) that satisfy this equation while keeping both variables non-negative. **Solution Approach:** 1. **Identify the Equation:** Start with the given equation: \[ 6.2x - 3.4y = 16 \] 2. **Rewrite for \( y \):** Express \( y \) in terms of \( x \): \[ 3.4y = 6.2x - 16 \] \[ y = \frac{6.2}{3.4}x - \frac{16}{3.4} \] 3. **Find Intercepts:** - **X-Intercept:** Set \( y = 0 \), solve for \( x \). - **Y-Intercept:** Set \( x = 0 \), solve for \( y \). 4. **Graph Representation:** Though not shown here, graph the line by plotting the intercepts and identifying the region where both \( x \) and \( y \) are non-negative. 5. **Check for Integer Solutions:** If necessary, find integer pairs by testing values of \( x \) that result in \( y \) being a non-negative integer, or vice versa. This approach ensures that you identify all set conditions of \((x,y)\) such that both are non-negative and satisfy the equation.
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