Problem 143 of 7
Write the domain described by all real numbers except when the denominator is zero, where z=7 using inequalities or interval notation.
Using a hint is okay. It just tells the trainer to give you a little more review.
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translate context restrictions symbolically.
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Description must specify bounds and inclusion clearly enough for symbolic notation.
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Your answer is equivalent to the expected form.
Walkthrough
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1. Identify lower and upper bounds.
2. Determine whether endpoints are included.
3. Write the domain in inequality or interval notation.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Notation that reverses open and closed endpoints.