Find the equation of the line tangent to the hyperbola x + 2xy - y + x = 5 at the point (3,7)

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
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Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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**Implicit Differentiation: Finding the Slope**

Find the equation of the line tangent to the hyperbola \( x^2 + 2xy - y^2 + x = 5 \) at the point \( (3, 7) \).

---

**Step 1**

*Graph Explanation:*

The graph shows a hyperbola on a coordinate plane. The axes range from -10 to 10. The curves of the hyperbola intersect the axes, and there is a tangent line at the point (3, 7).

*Instructions:*

Use implicit differentiation to find the slope of the tangent line to the hyperbola 

\[ x^2 + 2xy - y^2 + x = 5 \]

at the point \( (3, 7) \).

\[ 
\frac{d}{dx}[x^2 + 2xy - y^2 + x] = \frac{d}{dx}[5] 
\]

Taking the derivative of both sides with respect to \( x \) gives: 

\[ 
2x + 2 \left( y + x \frac{dy}{dx} \right) - 2y \frac{dy}{dx} + 1 = 0 
\]

---

*Options:*

- Submit
- Skip, (you cannot come back)
Transcribed Image Text:**Implicit Differentiation: Finding the Slope** Find the equation of the line tangent to the hyperbola \( x^2 + 2xy - y^2 + x = 5 \) at the point \( (3, 7) \). --- **Step 1** *Graph Explanation:* The graph shows a hyperbola on a coordinate plane. The axes range from -10 to 10. The curves of the hyperbola intersect the axes, and there is a tangent line at the point (3, 7). *Instructions:* Use implicit differentiation to find the slope of the tangent line to the hyperbola \[ x^2 + 2xy - y^2 + x = 5 \] at the point \( (3, 7) \). \[ \frac{d}{dx}[x^2 + 2xy - y^2 + x] = \frac{d}{dx}[5] \] Taking the derivative of both sides with respect to \( x \) gives: \[ 2x + 2 \left( y + x \frac{dy}{dx} \right) - 2y \frac{dy}{dx} + 1 = 0 \] --- *Options:* - Submit - Skip, (you cannot come back)
Expert Solution
Step 1

Given,            x2+2xy -y2+x =5 and point (3,7)

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