
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
The four points $A(-4,0), B(0,-4), X(5,8),$ and $Y(19,k)$ are on the Cartesian plane. If segment $AB$ is parallel to segment $XY$, what is the value of $k$?

Present the answer in LaTex format: \boxed{Your answer}
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