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5. Graph the equation x + 2y + 3z = 6.


1 Answer

7 votes

Answer:

Explanation:

x+2y+3z=6

Plane xy

z=0→x+2y+3(0)=6→x+2y+0=6→x+2y=6

x=0→0+2y=6→2y=6→2y/2=6/2→y=3→Point=(x,y,z)=(0,3,0)

It's not the first graph, because at plane xy when x=0, y=2

In the second and third graph, at plane xy, when x=0, y=3

y=0→x+2(0)=6→x+0=6→x=6→Point=(x,y,z)=(6,0,0)

It's not the third graph, because at plane xy when y=0, x=3

It's the secon graph, because at plane xy when y=0, x=6.

Let's check the other planes:

Plane yz

x=0→0+2y+3z=6→2y+3z=6

z=0→2y+3(0)=6→2y+0=6→2y=6→2y/2=6/2→y=3→Point=(x,y,z)=(0,3,0)

In the second graph, at plane yz, when z=0, y=3

y=0→2(0)+3z=6→0+3z=6→3z=6→3z/3=6/3→z=2→Point=(x,y,z)=(0,0,2)

In the second graph, at plane yz, when y=0, z=2

Plane xz

y=0→x+2(0)+3z=6→x+0+3z=6→x+3z=6

z=0→x+3(0)=6→x+0=6→x=6→Point=(x,y,z)=(6,0,0)

In the second graph, at plane xz, when z=0, y=6

x=0→0+3z=6→3z=6→3z/3=6/3→z=2→Point=(x,y,z)=(0,0,2)

In the second graph, at plane xz, when x=0, z=2

User Ken Colton
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