Saturday

December 20, 2014

December 20, 2014

Posted by **Anonymous** on Tuesday, January 29, 2013 at 7:41am.

- maths -
**Reiny**, Tuesday, January 29, 2013 at 8:02amI assume you mean

(x+1)/-3 = (y-3)/2 = (z+2)/1 , the brackets are essential

so we know (-1,3,-2) is a point on the plane and we also have a direction vector of [-3,2,1]

using (0,7,-7) we can find a second direction vector which would be

[1,4,-5]

a normal to [-3,2,1] and [1,4,-5] is [-14, -14 , -14]

or reduced to [1,1,1]

So the equation of the plane is

x + y + z = c, but -1,3,-2) lies on it

-1 + 3 - 2 = c = 0

equation of plane:

x+y+z = 0

**Answer this Question**

**Related Questions**

Vector - 2. Determine the Cartesian equation of the plane passing through the ...

math - i have more than one question so if u no any of the answers please tell ...

Pre- Algebra - Given an equation of a line, how do I find equations for lines ...

algebra - Please help me. Find the equation of the line satisfying the ...

Calculus - Determine the equation of the line described by the given information...

Algebra - Can someone check my answers? 1. Write the equation of the line that ...

Geometry - 4.Determine which point does not lie on the graph of the line y=x-3 a...

Algebra... - Write the equation of a vertical line passing through the point (8...

Three Dimensions/Calculus - Find the general form of the equation of the plane ...

Algebra - Write an equation in standard form (slope-intecept form) of the line ...