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Find an equation of the plane with xx-intercept aa, yy-intercept bb, and zz-intercept cc.

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Question :

Find an equation of the plane with xx-intercept aa, yy-intercept bb, and zz-intercept cc.

Find an equation of the plane with x-intercept a, y-intercept b, and z | Doubtlet.com

Solution:

Neetesh Kumar

Neetesh Kumar | December 16, 2024

Calculus Homework Help

This is the solution to Math 1C
Assignment: 12.5 Question Number 26
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Step-by-step solution:

We need to find the equation of the plane with xx-intercept aa, yy-intercept bb, and zz-intercept cc.

Step 1: General form of the plane equation

The general form of the equation of a plane is: Ax+By+Cz=DAx + By + Cz = D where AA, BB, and CC are constants representing the normal vector of the plane, and DD is a constant.

Step 2: Intercepts of the plane

The plane intersects the xx-axis at (a,0,0)(a, 0, 0), the yy-axis at (0,b,0)(0, b, 0), and the zz-axis at (0,0,c)(0, 0, c).

The plane passing through these three points has the following equation:

xa+yb+zc=1\frac{x}{a} + \frac{y}{b} + \frac{z}{c} = 1

Step 3: Verification

  1. At the xx-intercept (a,0,0)(a, 0, 0):

    aa+0b+0c=1\frac{a}{a} + \frac{0}{b} + \frac{0}{c} = 1 This holds true.

  2. At the yy-intercept (0,b,0)(0, b, 0): 0a+bb+0c=1\frac{0}{a} + \frac{b}{b} + \frac{0}{c} = 1 This also holds true.

  3. At the zz-intercept (0,0,c)(0, 0, c):

    0a+0b+cc=1\frac{0}{a} + \frac{0}{b} + \frac{c}{c} = 1 This holds true as well.

Thus, the equation is consistent for all three intercepts.

Final Answer:

The equation of the plane with xx-intercept aa, yy-intercept bb, and zz-intercept cc is:

xa+yb+zc=1\boxed{\frac{x}{a} + \frac{y}{b} + \frac{z}{c} = 1}


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