A student writes the inequality x > 17 in interval notation as [17, POS INF]. Explain why this is incorrect.
1 answer:
Answer:
see explanation
Step-by-step explanation:
[ 17, + ∞ ] are used to indicate that the values inside are equal to the 2 limits, that is that x can equal 17 or + ∞
However, this as not the case as x > 17 indicates x is greater than 17 but not equal to it. This is also true for + ∞
To represent this situation parenthesis is used, that is
(17, + ∞ )
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Answer:
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Step-by-step explanation:
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