Find an equation of a plane through the point C-5, 4₁-32 Which is or thogonal to the line X= 5+-1₁ y=-30 +4+), Z==(1+3+)

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
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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**Title: Finding an Equation of a Plane Orthogonal to a Line**

**Introduction:**
In this exercise, we will determine the equation of a plane that passes through a given point and is orthogonal to a specified line. This requires understanding the relationship between planes and lines in three-dimensional space.

**Problem:**
Find an equation of a plane through the point \( (-5, 4, -3) \) which is orthogonal to the line given by the parametric equations:
- \( x = 5t - 1 \)
- \( y = -8t + 5 \)
- \( z = -1 + 3t \)

**Solution Outline:**
1. **Determine the Direction Vector:** The line's parametric equations provide the direction vector of the line. For the given line, the direction vector is \( \langle 5, -8, 3 \rangle \).

2. **Use the Direction Vector as the Normal Vector:** Since the plane is orthogonal to the line, the direction vector of the line will be the normal vector of the plane.

3. **Point-Normal Form of the Plane Equation:** The general equation of a plane in point-normal form is:
   \[
   a(x - x_0) + b(y - y_0) + c(z - z_0) = 0
   \]
   where \( \langle a, b, c \rangle \) is the normal vector and \( (x_0, y_0, z_0) \) is a point on the plane.

4. **Substitute the Values:**
   - Normal Vector: \( \langle 5, -8, 3 \rangle \)
   - Point on the Plane: \( (-5, 4, -3) \)

   The plane equation becomes:
   \[
   5(x + 5) - 8(y - 4) + 3(z + 3) = 0
   \]

5. **Simplify the Equation:**
   \[
   5x + 25 - 8y + 32 + 3z + 9 = 0
   \]
   \[
   5x - 8y + 3z + 66 = 0
   \]

**Conclusion:**
The equation of the plane orthogonal to the given line and passing through
Transcribed Image Text:**Title: Finding an Equation of a Plane Orthogonal to a Line** **Introduction:** In this exercise, we will determine the equation of a plane that passes through a given point and is orthogonal to a specified line. This requires understanding the relationship between planes and lines in three-dimensional space. **Problem:** Find an equation of a plane through the point \( (-5, 4, -3) \) which is orthogonal to the line given by the parametric equations: - \( x = 5t - 1 \) - \( y = -8t + 5 \) - \( z = -1 + 3t \) **Solution Outline:** 1. **Determine the Direction Vector:** The line's parametric equations provide the direction vector of the line. For the given line, the direction vector is \( \langle 5, -8, 3 \rangle \). 2. **Use the Direction Vector as the Normal Vector:** Since the plane is orthogonal to the line, the direction vector of the line will be the normal vector of the plane. 3. **Point-Normal Form of the Plane Equation:** The general equation of a plane in point-normal form is: \[ a(x - x_0) + b(y - y_0) + c(z - z_0) = 0 \] where \( \langle a, b, c \rangle \) is the normal vector and \( (x_0, y_0, z_0) \) is a point on the plane. 4. **Substitute the Values:** - Normal Vector: \( \langle 5, -8, 3 \rangle \) - Point on the Plane: \( (-5, 4, -3) \) The plane equation becomes: \[ 5(x + 5) - 8(y - 4) + 3(z + 3) = 0 \] 5. **Simplify the Equation:** \[ 5x + 25 - 8y + 32 + 3z + 9 = 0 \] \[ 5x - 8y + 3z + 66 = 0 \] **Conclusion:** The equation of the plane orthogonal to the given line and passing through
**Problem:**

Find an equation of a plane through the point \((-5, 4, -3)\) which is orthogonal to the line:

\[ x = 5t - 1 \]
\[ y = -6t + 4 \]
\[ z = -1(t + 3t) \]

**Solution Explanation:**

To find the equation of a plane that passes through a given point and is orthogonal to a line, you need to determine the direction vector of the line and use it as the normal vector for the plane.

1. **Find the direction vector of the line**: 
   - From the parametric equations of the line, the coefficients of \(t\) in each equation represent the direction vector. So, the direction vector \(\mathbf{d}\) is \((5, -6, -1)\).

2. **Use the direction vector as the normal vector of the plane**: 
   - The general equation of a plane with a normal vector \((a, b, c)\) passing through a point \((x_0, y_0, z_0)\) is:
     \[ a(x - x_0) + b(y - y_0) + c(z - z_0) = 0 \]

3. **Substitute the given point and normal vector into the plane equation**:
   - For the point \((-5, 4, -3)\) and normal vector \((5, -6, -1)\):
     \[ 5(x + 5) - 6(y - 4) - 1(z + 3) = 0 \]

4. **Simplify the equation to find the plane through the given point**:
   - Expand and simplify the equation:
     \[ 5x + 25 - 6y + 24 - z - 3 = 0 \]
     \[ 5x - 6y - z + 46 = 0 \]

Thus, the equation of the plane is \(5x - 6y - z + 46 = 0\).
Transcribed Image Text:**Problem:** Find an equation of a plane through the point \((-5, 4, -3)\) which is orthogonal to the line: \[ x = 5t - 1 \] \[ y = -6t + 4 \] \[ z = -1(t + 3t) \] **Solution Explanation:** To find the equation of a plane that passes through a given point and is orthogonal to a line, you need to determine the direction vector of the line and use it as the normal vector for the plane. 1. **Find the direction vector of the line**: - From the parametric equations of the line, the coefficients of \(t\) in each equation represent the direction vector. So, the direction vector \(\mathbf{d}\) is \((5, -6, -1)\). 2. **Use the direction vector as the normal vector of the plane**: - The general equation of a plane with a normal vector \((a, b, c)\) passing through a point \((x_0, y_0, z_0)\) is: \[ a(x - x_0) + b(y - y_0) + c(z - z_0) = 0 \] 3. **Substitute the given point and normal vector into the plane equation**: - For the point \((-5, 4, -3)\) and normal vector \((5, -6, -1)\): \[ 5(x + 5) - 6(y - 4) - 1(z + 3) = 0 \] 4. **Simplify the equation to find the plane through the given point**: - Expand and simplify the equation: \[ 5x + 25 - 6y + 24 - z - 3 = 0 \] \[ 5x - 6y - z + 46 = 0 \] Thus, the equation of the plane is \(5x - 6y - z + 46 = 0\).
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