Step 1:

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The lines are $\"\"$

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .

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If two lines are parallel, then that lines are scalar multiples of each other.

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The normal vector of $\"\"$ is $\"\"$ .

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$\"\"$

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The directional vector of $\"\"$ is $\"\"$ .

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$\"\"$

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$\"\"$ .

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The directional vector of $\"\"$ is $\"\"$ .

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$\"\"$

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$\"\"$

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The directional vector of $\"\"$ is $\"\"$ .

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$\"\"$ .

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The lines $\"\"$ and $\"\"$ are parallel.

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Step 2:

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If the lines are identical, then that lines are must be parallel.

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Set $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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The line $\"\"$ passes through the point is $\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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The line $\"\"$ passes through the point is $\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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The line $\"\"$ passes through the point is $\"\"$ .

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The lines $\"\"$ and $\"\"$ are identical lines.

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Solution:

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The lines $\"\"$ and $\"\"$ are parallel.

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The lines $\"\"$ and $\"\"$ are identical lines.

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Step 2:

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If the lines are identical, then that lines are must be parallel.

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The lines $\"\"$ and $\"\"$ are parallel.

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For line $\"\"$ , set $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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The line $\"\"$ passes through the point is $\"\"$ .

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For line $\"\"$ ,substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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The line $\"\"$ passes through the point is $\"\"$ .

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Step 3:

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For line $\"\"$ , substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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The line $\"\"$ passes through the point is $\"\"$ .

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The points of $\"\"$ and $\"\"$ are equal.

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The lines $\"\"$ and $\"\"$ are identical lines.

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Solution:

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The lines $\"\"$ and is parellel to $\"\"$ .

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The lines $\"\"$ and $\"\"$ are identical lines.

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