T² -1 =(t)² - (1)² = (t + 1) (t - 1)
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Answer: (t + 1) (t - 1)
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The answer is C!!! Hope it helped!
If you would have to graph x=7, you probably know that this is a vertical line at, well, x=7.
| x | = 7 is nothing more than two vertical lines, namely x=7 or x=-7, as you already wrote down.
| x | = -8 has no (real) solutions, so there is nothing to graph.
