Find the area in the plane contained by the graph of
\[|x + y| + |x - y| \le 4.\]
Question:
Find the area in the plane contained by the graph of
\[|x + y| + |x - y| \le 4.\]
Answer:
Let's think step by step.

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Find the area in the plane contained by the graph of
\[|x + y| + |x - y| \le 4.\]
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