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Functions and Relations (G12)

question 1 of 12 Grade: Twelve - G12

Q: Which function is one-to-one?

Did You Know?

TRUE. Critical points: \(x = -2\) (undefined) and \(x = 1\) (zero). Test intervals: For \(x < -2\), negative/negative = positive; for \(-2 < x < 1\), negative/positive = negative; for \(x > 1\), positive/positive = positive. Since \(> 0\), solution is \(x < -2\) or \(x > 1\).

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Did You Know?

TRUE. Critical points: \(x = -2\) (undefined) and \(x = 1\) (zero). Test intervals: For \(x < -2\), negative/negative = positive; for \(-2 < x < 1\), negative/positive = negative; for \(x > 1\), positive/positive = positive. Since \(> 0\), solution is \(x < -2\) or \(x > 1\).

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