Find an equation for the surface consisting of all points p for which the distance from p to the x-axis is 5 times the distance from p to the yz-plane.

Respuesta :

Distance from P to the x-axis = 2x distance from P to the yz-plane 

Distance to the x-axis of a point P=(x,y,z) is (y^2+z^2)^1/2 
Distance to the yz-plane of a point P=(x,y,z) is x 

So your equation is: 
(y^2+z^2)^1/2 = 2x 
=> y^2 + z^2 = 4x^2 
=> y^2 + z^2 - 4x^2 = 0 

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The distance between two points, is the number of units between them.

The equation that represents the distance is [tex]\mathbf{ -25x^2 + y^2+z^2 = 0}[/tex]

The distance between a point and the x-axis is represented as:

[tex]\mathbf{D = (y^2+z^2)^{\frac 12}}[/tex]

From the question, we have:

[tex]\mathbf{D = 5x}[/tex]

Equate both expressions for D

[tex]\mathbf{5x = (y^2+z^2)^{\frac 12}}[/tex]

Square both sides

[tex]\mathbf{25x^2 = y^2+z^2}[/tex]

Equate to 0

[tex]\mathbf{ y^2+z^2 -25x^2 = 0}[/tex]

Rewrite as:

[tex]\mathbf{ -25x^2 + y^2+z^2 = 0}[/tex]

Hence, the equation that represents the distance is [tex]\mathbf{ -25x^2 + y^2+z^2 = 0}[/tex]

Read more about distance at:

https://brainly.com/question/10900823