Problem 31 of 7
Use the vertical line test on a V-shaped graph like y = |x|. Is it a function?
Hints
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determine whether x-values have one y-value.
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Graph description must support vertical line test classification.
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Solution
Walkthrough
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1. Imagine vertical lines passing through the graph.
2. If any vertical line hits more than once, the graph is not a function.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Horizontal line test reasoning.