To determine which equation creates the upper function in a graph of absolute value equations, we can analyze each option based on how vertical shifts affect the graph.
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y = |x| + 3: This represents the absolute value function shifted upward by 3 units. This will be an upper function compared to just y = |x|.
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y = |x - 3|: This represents the absolute value function shifted to the right by 3 units. It does not affect the vertical position.
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y = |x| - 3: This represents the absolute value function shifted downward by 3 units. This will be lower than y = |x|.
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y = |x + 3|: This represents the absolute value function shifted to the left by 3 units. Again, this does not affect the vertical position like the first option.
Considering these transformations, the upper function in the graph is likely to be represented by y = |x| + 3 as it is the only equation that shifts the basic absolute value function up. Therefore, it is the correct response.