Problem 76 of 7
A measurement must be within 0.5 inches of 12 inches. Write the absolute-value inequality and describe its graph on a number line.
Using a hint is okay. It just tells the trainer to give you a little more review.
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distinguish within/at least distance and graph interval or rays.
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Context must distinguish within distance from at-least distance.
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Your answer is equivalent to the expected form.
Walkthrough
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1. Identify the center value and distance.
2. Within means less than or equal to; at least away means greater than or equal to.
3. Translate to interval or rays.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Wrong inequality direction for within versus outside.