- #1
andrey21
- 476
- 0
Calculate in parametric form and describe how the planes intersect
Where:
P1 = x-3y+5z=6
P2 = 2x-7y+9z=2
My attempt
Put planes in matrix form:
1, -3, 5, 6
2, -7, 9, 2
Find Echelon Form
1, -3, 5, 6
0, -1, -1, -10
Z = free variable = a
So:
-y-z=-10
y = 10 - a
Sub into P1:
x-3(10-a)+5z=6
x -30 +3a +5a =9
x+8a=36
x=36-8a
So vector parametric form of equation is:
(x,y,z) = (36,10,0) + a(-8,-1,1)
Is this correct??
Where:
P1 = x-3y+5z=6
P2 = 2x-7y+9z=2
My attempt
Put planes in matrix form:
1, -3, 5, 6
2, -7, 9, 2
Find Echelon Form
1, -3, 5, 6
0, -1, -1, -10
Z = free variable = a
So:
-y-z=-10
y = 10 - a
Sub into P1:
x-3(10-a)+5z=6
x -30 +3a +5a =9
x+8a=36
x=36-8a
So vector parametric form of equation is:
(x,y,z) = (36,10,0) + a(-8,-1,1)
Is this correct??