
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
Given the equations $4y-3x=16$, $-3x-4y=15$, $4y+3x=16$, and $3y+4x=15$, determine the slope of the line represented by each equation and identify the pairs of equations that represent perpendicular lines.

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